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Finding the Fourth Proportional to 534,475.40, 801,713.10 and 490,929.80

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Solution

The fourth proportional to 534,475.40, 801,713.10 and 490,929.80 is: 736,394.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,475.40 : 801,713.10 = 490,929.80 : x
  2. Step 2: Convert to fraction form
    534,475.40/801,713.10 = 490,929.80/x
  3. Step 3: Cross multiply
    534,475.40x = 801,713.10 × 490,929.80
  4. Step 4: Simplify right side
    534,475.40x = 393,584,851,840.38
  5. Step 5: Solve for x
    x = 393,584,851,840.38/534,475.40
  6. Step 6: Final answer
    x = 736,394.70

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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.