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Finding the Fourth Proportional to 887.52, 1,330.07 and 562.31

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Solution

The fourth proportional to 887.52, 1,330.07 and 562.31 is: 842.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.52 : 1,330.07 = 562.31 : x
  2. Step 2: Convert to fraction form
    887.52/1,330.07 = 562.31/x
  3. Step 3: Cross multiply
    887.52x = 1,330.07 × 562.31
  4. Step 4: Simplify right side
    887.52x = 747,911.66
  5. Step 5: Solve for x
    x = 747,911.66/887.52
  6. Step 6: Final answer
    x = 842.70

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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.