Home / 1,152,074.80-1,728,112.20-521,009.20

Finding the Fourth Proportional to 1,152,074.80, 1,728,112.20 and 521,009.20

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Solution

The fourth proportional to 1,152,074.80, 1,728,112.20 and 521,009.20 is: 781,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,074.80 : 1,728,112.20 = 521,009.20 : x
  2. Step 2: Convert to fraction form
    1,152,074.80/1,728,112.20 = 521,009.20/x
  3. Step 3: Cross multiply
    1,152,074.80x = 1,728,112.20 × 521,009.20
  4. Step 4: Simplify right side
    1,152,074.80x = 900,362,354,832.24
  5. Step 5: Solve for x
    x = 900,362,354,832.24/1,152,074.80
  6. Step 6: Final answer
    x = 781,513.80

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Double scale
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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.