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Finding the Fourth Proportional to 539.46, 742.65 and 473.94

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Solution

The fourth proportional to 539.46, 742.65 and 473.94 is: 652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.46 : 742.65 = 473.94 : x
  2. Step 2: Convert to fraction form
    539.46/742.65 = 473.94/x
  3. Step 3: Cross multiply
    539.46x = 742.65 × 473.94
  4. Step 4: Simplify right side
    539.46x = 351,971.54
  5. Step 5: Solve for x
    x = 351,971.54/539.46
  6. Step 6: Final answer
    x = 652.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.