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Finding the Fourth Proportional to 534,430.80, 801,646.20 and 331,477.20

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Solution

The fourth proportional to 534,430.80, 801,646.20 and 331,477.20 is: 497,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,430.80 : 801,646.20 = 331,477.20 : x
  2. Step 2: Convert to fraction form
    534,430.80/801,646.20 = 331,477.20/x
  3. Step 3: Cross multiply
    534,430.80x = 801,646.20 × 331,477.20
  4. Step 4: Simplify right side
    534,430.80x = 265,727,437,766.64
  5. Step 5: Solve for x
    x = 265,727,437,766.64/534,430.80
  6. Step 6: Final answer
    x = 497,215.80

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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.