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Finding the Fourth Proportional to 637.32, 956.45 and 474.51

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Solution

The fourth proportional to 637.32, 956.45 and 474.51 is: 712.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.32 : 956.45 = 474.51 : x
  2. Step 2: Convert to fraction form
    637.32/956.45 = 474.51/x
  3. Step 3: Cross multiply
    637.32x = 956.45 × 474.51
  4. Step 4: Simplify right side
    637.32x = 453,845.09
  5. Step 5: Solve for x
    x = 453,845.09/637.32
  6. Step 6: Final answer
    x = 712.11

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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.