Home / 1,149,772.78-1,587,344.12-763,112.56

Finding the Fourth Proportional to 1,149,772.78, 1,587,344.12 and 763,112.56

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Solution

The fourth proportional to 1,149,772.78, 1,587,344.12 and 763,112.56 is: 1,053,531.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,772.78 : 1,587,344.12 = 763,112.56 : x
  2. Step 2: Convert to fraction form
    1,149,772.78/1,587,344.12 = 763,112.56/x
  3. Step 3: Cross multiply
    1,149,772.78x = 1,587,344.12 × 763,112.56
  4. Step 4: Simplify right side
    1,149,772.78x = 1,211,322,223,261.86
  5. Step 5: Solve for x
    x = 1,211,322,223,261.86/1,149,772.78
  6. Step 6: Final answer
    x = 1,053,531.83

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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.