Home / 1,102,781.52-1,651,284.36-722,505.96

Finding the Fourth Proportional to 1,102,781.52, 1,651,284.36 and 722,505.96

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Solution

The fourth proportional to 1,102,781.52, 1,651,284.36 and 722,505.96 is: 1,081,866.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,781.52 : 1,651,284.36 = 722,505.96 : x
  2. Step 2: Convert to fraction form
    1,102,781.52/1,651,284.36 = 722,505.96/x
  3. Step 3: Cross multiply
    1,102,781.52x = 1,651,284.36 × 722,505.96
  4. Step 4: Simplify right side
    1,102,781.52x = 1,193,062,791,754.79
  5. Step 5: Solve for x
    x = 1,193,062,791,754.79/1,102,781.52
  6. Step 6: Final answer
    x = 1,081,866.87

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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.