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Finding the Fourth Proportional to 555,229.80, 766,216.17 and 300,580.92

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Solution

The fourth proportional to 555,229.80, 766,216.17 and 300,580.92 is: 414,801.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,229.80 : 766,216.17 = 300,580.92 : x
  2. Step 2: Convert to fraction form
    555,229.80/766,216.17 = 300,580.92/x
  3. Step 3: Cross multiply
    555,229.80x = 766,216.17 × 300,580.92
  4. Step 4: Simplify right side
    555,229.80x = 230,309,961,297.48
  5. Step 5: Solve for x
    x = 230,309,961,297.48/555,229.80
  6. Step 6: Final answer
    x = 414,801.15

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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.