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Finding the Fourth Proportional to 709.72, 1,062.51 and 524.73

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Solution

The fourth proportional to 709.72, 1,062.51 and 524.73 is: 785.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    709.72 : 1,062.51 = 524.73 : x
  2. Step 2: Convert to fraction form
    709.72/1,062.51 = 524.73/x
  3. Step 3: Cross multiply
    709.72x = 1,062.51 × 524.73
  4. Step 4: Simplify right side
    709.72x = 557,530.87
  5. Step 5: Solve for x
    x = 557,530.87/709.72
  6. Step 6: Final answer
    x = 785.56

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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.