Home / 728,656.20-1,091,234.70-588,688.20

Finding the Fourth Proportional to 728,656.20, 1,091,234.70 and 588,688.20

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Solution

The fourth proportional to 728,656.20, 1,091,234.70 and 588,688.20 is: 881,618.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,656.20 : 1,091,234.70 = 588,688.20 : x
  2. Step 2: Convert to fraction form
    728,656.20/1,091,234.70 = 588,688.20/x
  3. Step 3: Cross multiply
    728,656.20x = 1,091,234.70 × 588,688.20
  4. Step 4: Simplify right side
    728,656.20x = 642,396,991,320.54
  5. Step 5: Solve for x
    x = 642,396,991,320.54/728,656.20
  6. Step 6: Final answer
    x = 881,618.78

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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.