Home / 1,278,391.92-1,915,115.06-1,070,761.44

Finding the Fourth Proportional to 1,278,391.92, 1,915,115.06 and 1,070,761.44

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Solution

The fourth proportional to 1,278,391.92, 1,915,115.06 and 1,070,761.44 is: 1,604,070.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,391.92 : 1,915,115.06 = 1,070,761.44 : x
  2. Step 2: Convert to fraction form
    1,278,391.92/1,915,115.06 = 1,070,761.44/x
  3. Step 3: Cross multiply
    1,278,391.92x = 1,915,115.06 × 1,070,761.44
  4. Step 4: Simplify right side
    1,278,391.92x = 2,050,631,359,411.29
  5. Step 5: Solve for x
    x = 2,050,631,359,411.29/1,278,391.92
  6. Step 6: Final answer
    x = 1,604,070.96

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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.