Home / 824,113.85-1,236,592.68-392,319.96

Finding the Fourth Proportional to 824,113.85, 1,236,592.68 and 392,319.96

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Solution

The fourth proportional to 824,113.85, 1,236,592.68 and 392,319.96 is: 588,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,113.85 : 1,236,592.68 = 392,319.96 : x
  2. Step 2: Convert to fraction form
    824,113.85/1,236,592.68 = 392,319.96/x
  3. Step 3: Cross multiply
    824,113.85x = 1,236,592.68 × 392,319.96
  4. Step 4: Simplify right side
    824,113.85x = 485,139,984,645.47
  5. Step 5: Solve for x
    x = 485,139,984,645.47/824,113.85
  6. Step 6: Final answer
    x = 588,680.78

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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.