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Finding the Fourth Proportional to 757.09, 1,044.83 and 462.45

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Solution

The fourth proportional to 757.09, 1,044.83 and 462.45 is: 638.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    757.09 : 1,044.83 = 462.45 : x
  2. Step 2: Convert to fraction form
    757.09/1,044.83 = 462.45/x
  3. Step 3: Cross multiply
    757.09x = 1,044.83 × 462.45
  4. Step 4: Simplify right side
    757.09x = 483,181.63
  5. Step 5: Solve for x
    x = 483,181.63/757.09
  6. Step 6: Final answer
    x = 638.21

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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.