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Finding the Fourth Proportional to 534,553.80, 801,830.70 and 331,600.20

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Solution

The fourth proportional to 534,553.80, 801,830.70 and 331,600.20 is: 497,400.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,553.80 : 801,830.70 = 331,600.20 : x
  2. Step 2: Convert to fraction form
    534,553.80/801,830.70 = 331,600.20/x
  3. Step 3: Cross multiply
    534,553.80x = 801,830.70 × 331,600.20
  4. Step 4: Simplify right side
    534,553.80x = 265,887,220,486.14
  5. Step 5: Solve for x
    x = 265,887,220,486.14/534,553.80
  6. Step 6: Final answer
    x = 497,400.30

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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.