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Finding the Fourth Proportional to 425,801.76, 587,614.92 and 275,161.20

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Solution

The fourth proportional to 425,801.76, 587,614.92 and 275,161.20 is: 379,727.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,801.76 : 587,614.92 = 275,161.20 : x
  2. Step 2: Convert to fraction form
    425,801.76/587,614.92 = 275,161.20/x
  3. Step 3: Cross multiply
    425,801.76x = 587,614.92 × 275,161.20
  4. Step 4: Simplify right side
    425,801.76x = 161,688,826,525.10
  5. Step 5: Solve for x
    x = 161,688,826,525.10/425,801.76
  6. Step 6: Final answer
    x = 379,727.94

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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.