Home / 687,550.18-1,031,353.11-327,535.86

Finding the Fourth Proportional to 687,550.18, 1,031,353.11 and 327,535.86

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Solution

The fourth proportional to 687,550.18, 1,031,353.11 and 327,535.86 is: 491,317.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,550.18 : 1,031,353.11 = 327,535.86 : x
  2. Step 2: Convert to fraction form
    687,550.18/1,031,353.11 = 327,535.86/x
  3. Step 3: Cross multiply
    687,550.18x = 1,031,353.11 × 327,535.86
  4. Step 4: Simplify right side
    687,550.18x = 337,805,127,847.53
  5. Step 5: Solve for x
    x = 337,805,127,847.53/687,550.18
  6. Step 6: Final answer
    x = 491,317.05

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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.