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Finding the Fourth Proportional to 962.92, 1,329.24 and 614.08

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Solution

The fourth proportional to 962.92, 1,329.24 and 614.08 is: 847.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.92 : 1,329.24 = 614.08 : x
  2. Step 2: Convert to fraction form
    962.92/1,329.24 = 614.08/x
  3. Step 3: Cross multiply
    962.92x = 1,329.24 × 614.08
  4. Step 4: Simplify right side
    962.92x = 816,259.70
  5. Step 5: Solve for x
    x = 816,259.70/962.92
  6. Step 6: Final answer
    x = 847.69

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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.