Home / 2,687,690.79-4,031,486.46-665,939.61

Finding the Fourth Proportional to 2,687,690.79, 4,031,486.46 and 665,939.61

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Solution

The fourth proportional to 2,687,690.79, 4,031,486.46 and 665,939.61 is: 998,897.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687,690.79 : 4,031,486.46 = 665,939.61 : x
  2. Step 2: Convert to fraction form
    2,687,690.79/4,031,486.46 = 665,939.61/x
  3. Step 3: Cross multiply
    2,687,690.79x = 4,031,486.46 × 665,939.61
  4. Step 4: Simplify right side
    2,687,690.79x = 2,684,726,520,892.68
  5. Step 5: Solve for x
    x = 2,684,726,520,892.68/2,687,690.79
  6. Step 6: Final answer
    x = 998,897.09

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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.