Home / 458,541.72-687,834.66-192,310.92

Finding the Fourth Proportional to 458,541.72, 687,834.66 and 192,310.92

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Solution

The fourth proportional to 458,541.72, 687,834.66 and 192,310.92 is: 288,475.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,541.72 : 687,834.66 = 192,310.92 : x
  2. Step 2: Convert to fraction form
    458,541.72/687,834.66 = 192,310.92/x
  3. Step 3: Cross multiply
    458,541.72x = 687,834.66 × 192,310.92
  4. Step 4: Simplify right side
    458,541.72x = 132,278,116,272.49
  5. Step 5: Solve for x
    x = 132,278,116,272.49/458,541.72
  6. Step 6: Final answer
    x = 288,475.64

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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.