Home / 912,705.52-1,375,219.76-756,262.92

Finding the Fourth Proportional to 912,705.52, 1,375,219.76 and 756,262.92

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Solution

The fourth proportional to 912,705.52, 1,375,219.76 and 756,262.92 is: 1,139,499.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,705.52 : 1,375,219.76 = 756,262.92 : x
  2. Step 2: Convert to fraction form
    912,705.52/1,375,219.76 = 756,262.92/x
  3. Step 3: Cross multiply
    912,705.52x = 1,375,219.76 × 756,262.92
  4. Step 4: Simplify right side
    912,705.52x = 1,040,027,711,339.30
  5. Step 5: Solve for x
    x = 1,040,027,711,339.30/912,705.52
  6. Step 6: Final answer
    x = 1,139,499.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.