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Finding the Fourth Proportional to 1,032.43, 1,547.90 and 484.31

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Solution

The fourth proportional to 1,032.43, 1,547.90 and 484.31 is: 726.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.43 : 1,547.90 = 484.31 : x
  2. Step 2: Convert to fraction form
    1,032.43/1,547.90 = 484.31/x
  3. Step 3: Cross multiply
    1,032.43x = 1,547.90 × 484.31
  4. Step 4: Simplify right side
    1,032.43x = 749,655.10
  5. Step 5: Solve for x
    x = 749,655.10/1,032.43
  6. Step 6: Final answer
    x = 726.11

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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.