Home / 1,331,508.80-1,997,263.20-826,639.85

Finding the Fourth Proportional to 1,331,508.80, 1,997,263.20 and 826,639.85

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Solution

The fourth proportional to 1,331,508.80, 1,997,263.20 and 826,639.85 is: 1,239,959.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,508.80 : 1,997,263.20 = 826,639.85 : x
  2. Step 2: Convert to fraction form
    1,331,508.80/1,997,263.20 = 826,639.85/x
  3. Step 3: Cross multiply
    1,331,508.80x = 1,997,263.20 × 826,639.85
  4. Step 4: Simplify right side
    1,331,508.80x = 1,651,017,352,058.52
  5. Step 5: Solve for x
    x = 1,651,017,352,058.52/1,331,508.80
  6. Step 6: Final answer
    x = 1,239,959.78

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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.