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Finding the Fourth Proportional to 726.64, 1,001.52 and 524.92

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Solution

The fourth proportional to 726.64, 1,001.52 and 524.92 is: 723.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    726.64 : 1,001.52 = 524.92 : x
  2. Step 2: Convert to fraction form
    726.64/1,001.52 = 524.92/x
  3. Step 3: Cross multiply
    726.64x = 1,001.52 × 524.92
  4. Step 4: Simplify right side
    726.64x = 525,717.88
  5. Step 5: Solve for x
    x = 525,717.88/726.64
  6. Step 6: Final answer
    x = 723.49

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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.