Home / 1,631,220.35-2,251,711.87-1,087,157.61

Finding the Fourth Proportional to 1,631,220.35, 2,251,711.87 and 1,087,157.61

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Solution

The fourth proportional to 1,631,220.35, 2,251,711.87 and 1,087,157.61 is: 1,500,695.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631,220.35 : 2,251,711.87 = 1,087,157.61 : x
  2. Step 2: Convert to fraction form
    1,631,220.35/2,251,711.87 = 1,087,157.61/x
  3. Step 3: Cross multiply
    1,631,220.35x = 2,251,711.87 × 1,087,157.61
  4. Step 4: Simplify right side
    1,631,220.35x = 2,447,965,692,279.94
  5. Step 5: Solve for x
    x = 2,447,965,692,279.94/1,631,220.35
  6. Step 6: Final answer
    x = 1,500,695.91

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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.