Home / 880,729.14-1,215,481.17-498,823.86

Finding the Fourth Proportional to 880,729.14, 1,215,481.17 and 498,823.86

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Solution

The fourth proportional to 880,729.14, 1,215,481.17 and 498,823.86 is: 688,419.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,729.14 : 1,215,481.17 = 498,823.86 : x
  2. Step 2: Convert to fraction form
    880,729.14/1,215,481.17 = 498,823.86/x
  3. Step 3: Cross multiply
    880,729.14x = 1,215,481.17 × 498,823.86
  4. Step 4: Simplify right side
    880,729.14x = 606,311,008,976.72
  5. Step 5: Solve for x
    x = 606,311,008,976.72/880,729.14
  6. Step 6: Final answer
    x = 688,419.38

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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.