Home / 1,152,074.20-1,728,111.30-487,226.20

Finding the Fourth Proportional to 1,152,074.20, 1,728,111.30 and 487,226.20

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Solution

The fourth proportional to 1,152,074.20, 1,728,111.30 and 487,226.20 is: 730,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,074.20 : 1,728,111.30 = 487,226.20 : x
  2. Step 2: Convert to fraction form
    1,152,074.20/1,728,111.30 = 487,226.20/x
  3. Step 3: Cross multiply
    1,152,074.20x = 1,728,111.30 × 487,226.20
  4. Step 4: Simplify right side
    1,152,074.20x = 841,981,101,876.06
  5. Step 5: Solve for x
    x = 841,981,101,876.06/1,152,074.20
  6. Step 6: Final answer
    x = 730,839.30

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Half scale
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Double scale
Find fourth proportional to 1,152,075.20, 1,728,112.80 and 487,227.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.