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Finding the Fourth Proportional to 534,477.40, 801,716.10 and 490,931.80

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Solution

The fourth proportional to 534,477.40, 801,716.10 and 490,931.80 is: 736,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,477.40 : 801,716.10 = 490,931.80 : x
  2. Step 2: Convert to fraction form
    534,477.40/801,716.10 = 490,931.80/x
  3. Step 3: Cross multiply
    534,477.40x = 801,716.10 × 490,931.80
  4. Step 4: Simplify right side
    534,477.40x = 393,587,928,061.98
  5. Step 5: Solve for x
    x = 393,587,928,061.98/534,477.40
  6. Step 6: Final answer
    x = 736,397.70

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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.