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Finding the Fourth Proportional to 425,632.08, 636,871.07 and 341,135.97

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Solution

The fourth proportional to 425,632.08, 636,871.07 and 341,135.97 is: 510,439.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,632.08 : 636,871.07 = 341,135.97 : x
  2. Step 2: Convert to fraction form
    425,632.08/636,871.07 = 341,135.97/x
  3. Step 3: Cross multiply
    425,632.08x = 636,871.07 × 341,135.97
  4. Step 4: Simplify right side
    425,632.08x = 217,259,630,229.39
  5. Step 5: Solve for x
    x = 217,259,630,229.39/425,632.08
  6. Step 6: Final answer
    x = 510,439.98

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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.