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Finding the Fourth Proportional to 755.01, 1,042.38 and 588.96

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Solution

The fourth proportional to 755.01, 1,042.38 and 588.96 is: 813.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    755.01 : 1,042.38 = 588.96 : x
  2. Step 2: Convert to fraction form
    755.01/1,042.38 = 588.96/x
  3. Step 3: Cross multiply
    755.01x = 1,042.38 × 588.96
  4. Step 4: Simplify right side
    755.01x = 613,920.12
  5. Step 5: Solve for x
    x = 613,920.12/755.01
  6. Step 6: Final answer
    x = 813.13

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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.