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Finding the Fourth Proportional to 534,155.40, 801,233.10 and 490,609.80

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Solution

The fourth proportional to 534,155.40, 801,233.10 and 490,609.80 is: 735,914.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,155.40 : 801,233.10 = 490,609.80 : x
  2. Step 2: Convert to fraction form
    534,155.40/801,233.10 = 490,609.80/x
  3. Step 3: Cross multiply
    534,155.40x = 801,233.10 × 490,609.80
  4. Step 4: Simplify right side
    534,155.40x = 393,092,810,944.38
  5. Step 5: Solve for x
    x = 393,092,810,944.38/534,155.40
  6. Step 6: Final answer
    x = 735,914.70

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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.