Home / 681,773.54-1,022,660.28-208,458.86

Finding the Fourth Proportional to 681,773.54, 1,022,660.28 and 208,458.86

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Solution

The fourth proportional to 681,773.54, 1,022,660.28 and 208,458.86 is: 312,688.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,773.54 : 1,022,660.28 = 208,458.86 : x
  2. Step 2: Convert to fraction form
    681,773.54/1,022,660.28 = 208,458.86/x
  3. Step 3: Cross multiply
    681,773.54x = 1,022,660.28 × 208,458.86
  4. Step 4: Simplify right side
    681,773.54x = 213,182,596,136.08
  5. Step 5: Solve for x
    x = 213,182,596,136.08/681,773.54
  6. Step 6: Final answer
    x = 312,688.28

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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.