Home / 862,199.88-1,189,836.18-499,833.82

Finding the Fourth Proportional to 862,199.88, 1,189,836.18 and 499,833.82

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Solution

The fourth proportional to 862,199.88, 1,189,836.18 and 499,833.82 is: 689,770.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,199.88 : 1,189,836.18 = 499,833.82 : x
  2. Step 2: Convert to fraction form
    862,199.88/1,189,836.18 = 499,833.82/x
  3. Step 3: Cross multiply
    862,199.88x = 1,189,836.18 × 499,833.82
  4. Step 4: Simplify right side
    862,199.88x = 594,720,363,023.61
  5. Step 5: Solve for x
    x = 594,720,363,023.61/862,199.88
  6. Step 6: Final answer
    x = 689,770.87

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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.