Home / 761,454.70-1,142,182.05-525,064.30

Finding the Fourth Proportional to 761,454.70, 1,142,182.05 and 525,064.30

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Solution

The fourth proportional to 761,454.70, 1,142,182.05 and 525,064.30 is: 787,596.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,454.70 : 1,142,182.05 = 525,064.30 : x
  2. Step 2: Convert to fraction form
    761,454.70/1,142,182.05 = 525,064.30/x
  3. Step 3: Cross multiply
    761,454.70x = 1,142,182.05 × 525,064.30
  4. Step 4: Simplify right side
    761,454.70x = 599,719,018,555.82
  5. Step 5: Solve for x
    x = 599,719,018,555.82/761,454.70
  6. Step 6: Final answer
    x = 787,596.45

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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.