Home / 1,225,311.68-1,690,800.68-681,359.61

Finding the Fourth Proportional to 1,225,311.68, 1,690,800.68 and 681,359.61

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Solution

The fourth proportional to 1,225,311.68, 1,690,800.68 and 681,359.61 is: 940,204.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,311.68 : 1,690,800.68 = 681,359.61 : x
  2. Step 2: Convert to fraction form
    1,225,311.68/1,690,800.68 = 681,359.61/x
  3. Step 3: Cross multiply
    1,225,311.68x = 1,690,800.68 × 681,359.61
  4. Step 4: Simplify right side
    1,225,311.68x = 1,152,043,288,505.74
  5. Step 5: Solve for x
    x = 1,152,043,288,505.74/1,225,311.68
  6. Step 6: Final answer
    x = 940,204.29

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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.