Home / 667,985.68-1,002,000.30-218,732.32

Finding the Fourth Proportional to 667,985.68, 1,002,000.30 and 218,732.32

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Solution

The fourth proportional to 667,985.68, 1,002,000.30 and 218,732.32 is: 328,105.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,985.68 : 1,002,000.30 = 218,732.32 : x
  2. Step 2: Convert to fraction form
    667,985.68/1,002,000.30 = 218,732.32/x
  3. Step 3: Cross multiply
    667,985.68x = 1,002,000.30 × 218,732.32
  4. Step 4: Simplify right side
    667,985.68x = 219,169,850,259.70
  5. Step 5: Solve for x
    x = 219,169,850,259.70/667,985.68
  6. Step 6: Final answer
    x = 328,105.61

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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.