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Finding the Fourth Proportional to 757.06, 1,044.93 and 462.58

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Solution

The fourth proportional to 757.06, 1,044.93 and 462.58 is: 638.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    757.06 : 1,044.93 = 462.58 : x
  2. Step 2: Convert to fraction form
    757.06/1,044.93 = 462.58/x
  3. Step 3: Cross multiply
    757.06x = 1,044.93 × 462.58
  4. Step 4: Simplify right side
    757.06x = 483,363.72
  5. Step 5: Solve for x
    x = 483,363.72/757.06
  6. Step 6: Final answer
    x = 638.47

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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.