Home / 787,735.28-1,181,188.20-538,488.56

Finding the Fourth Proportional to 787,735.28, 1,181,188.20 and 538,488.56

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Solution

The fourth proportional to 787,735.28, 1,181,188.20 and 538,488.56 is: 807,449.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,735.28 : 1,181,188.20 = 538,488.56 : x
  2. Step 2: Convert to fraction form
    787,735.28/1,181,188.20 = 538,488.56/x
  3. Step 3: Cross multiply
    787,735.28x = 1,181,188.20 × 538,488.56
  4. Step 4: Simplify right side
    787,735.28x = 636,056,332,906.99
  5. Step 5: Solve for x
    x = 636,056,332,906.99/787,735.28
  6. Step 6: Final answer
    x = 807,449.34

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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.