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Finding the Fourth Proportional to 562.38, 775.47 and 479.37

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Solution

The fourth proportional to 562.38, 775.47 and 479.37 is: 661.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.38 : 775.47 = 479.37 : x
  2. Step 2: Convert to fraction form
    562.38/775.47 = 479.37/x
  3. Step 3: Cross multiply
    562.38x = 775.47 × 479.37
  4. Step 4: Simplify right side
    562.38x = 371,737.05
  5. Step 5: Solve for x
    x = 371,737.05/562.38
  6. Step 6: Final answer
    x = 661.01

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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.