Home / 1,262,077.28-1,741,657.92-689,117.12

Finding the Fourth Proportional to 1,262,077.28, 1,741,657.92 and 689,117.12

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Solution

The fourth proportional to 1,262,077.28, 1,741,657.92 and 689,117.12 is: 950,976.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,077.28 : 1,741,657.92 = 689,117.12 : x
  2. Step 2: Convert to fraction form
    1,262,077.28/1,741,657.92 = 689,117.12/x
  3. Step 3: Cross multiply
    1,262,077.28x = 1,741,657.92 × 689,117.12
  4. Step 4: Simplify right side
    1,262,077.28x = 1,200,206,289,855.59
  5. Step 5: Solve for x
    x = 1,200,206,289,855.59/1,262,077.28
  6. Step 6: Final answer
    x = 950,976.86

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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.