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Finding the Fourth Proportional to 730.52, 1,092.62 and 433.32

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Solution

The fourth proportional to 730.52, 1,092.62 and 433.32 is: 648.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    730.52 : 1,092.62 = 433.32 : x
  2. Step 2: Convert to fraction form
    730.52/1,092.62 = 433.32/x
  3. Step 3: Cross multiply
    730.52x = 1,092.62 × 433.32
  4. Step 4: Simplify right side
    730.52x = 473,455.18
  5. Step 5: Solve for x
    x = 473,455.18/730.52
  6. Step 6: Final answer
    x = 648.11

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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.