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Finding the Fourth Proportional to 725.86, 1,001.67 and 460.18

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Solution

The fourth proportional to 725.86, 1,001.67 and 460.18 is: 635.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    725.86 : 1,001.67 = 460.18 : x
  2. Step 2: Convert to fraction form
    725.86/1,001.67 = 460.18/x
  3. Step 3: Cross multiply
    725.86x = 1,001.67 × 460.18
  4. Step 4: Simplify right side
    725.86x = 460,948.03
  5. Step 5: Solve for x
    x = 460,948.03/725.86
  6. Step 6: Final answer
    x = 635.04

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1.5x scale

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.