Home / 3,121,374.92-4,678,869.76-1,581,517.85

Finding the Fourth Proportional to 3,121,374.92, 4,678,869.76 and 1,581,517.85

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Solution

The fourth proportional to 3,121,374.92, 4,678,869.76 and 1,581,517.85 is: 2,370,659.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,374.92 : 4,678,869.76 = 1,581,517.85 : x
  2. Step 2: Convert to fraction form
    3,121,374.92/4,678,869.76 = 1,581,517.85/x
  3. Step 3: Cross multiply
    3,121,374.92x = 4,678,869.76 × 1,581,517.85
  4. Step 4: Simplify right side
    3,121,374.92x = 7,399,716,015,917.07
  5. Step 5: Solve for x
    x = 7,399,716,015,917.07/3,121,374.92
  6. Step 6: Final answer
    x = 2,370,659.15

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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.