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Finding the Fourth Proportional to 539.48, 807.12 and 473.96

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Solution

The fourth proportional to 539.48, 807.12 and 473.96 is: 709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.48 : 807.12 = 473.96 : x
  2. Step 2: Convert to fraction form
    539.48/807.12 = 473.96/x
  3. Step 3: Cross multiply
    539.48x = 807.12 × 473.96
  4. Step 4: Simplify right side
    539.48x = 382,542.60
  5. Step 5: Solve for x
    x = 382,542.60/539.48
  6. Step 6: Final answer
    x = 709.10

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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.