Home / 1,217,425.20-1,822,201.20-863,131.20

Finding the Fourth Proportional to 1,217,425.20, 1,822,201.20 and 863,131.20

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Solution

The fourth proportional to 1,217,425.20, 1,822,201.20 and 863,131.20 is: 1,291,905.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,425.20 : 1,822,201.20 = 863,131.20 : x
  2. Step 2: Convert to fraction form
    1,217,425.20/1,822,201.20 = 863,131.20/x
  3. Step 3: Cross multiply
    1,217,425.20x = 1,822,201.20 × 863,131.20
  4. Step 4: Simplify right side
    1,217,425.20x = 1,572,798,708,397.44
  5. Step 5: Solve for x
    x = 1,572,798,708,397.44/1,217,425.20
  6. Step 6: Final answer
    x = 1,291,905.83

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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.