Home / 681,876.30-1,022,929.20-208,451.10

Finding the Fourth Proportional to 681,876.30, 1,022,929.20 and 208,451.10

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Solution

The fourth proportional to 681,876.30, 1,022,929.20 and 208,451.10 is: 312,711.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,876.30 : 1,022,929.20 = 208,451.10 : x
  2. Step 2: Convert to fraction form
    681,876.30/1,022,929.20 = 208,451.10/x
  3. Step 3: Cross multiply
    681,876.30x = 1,022,929.20 × 208,451.10
  4. Step 4: Simplify right side
    681,876.30x = 213,230,716,962.12
  5. Step 5: Solve for x
    x = 213,230,716,962.12/681,876.30
  6. Step 6: Final answer
    x = 312,711.73

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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.