Home / 2,578,691.85-3,868,166.26-981,378.73

Finding the Fourth Proportional to 2,578,691.85, 3,868,166.26 and 981,378.73

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Solution

The fourth proportional to 2,578,691.85, 3,868,166.26 and 981,378.73 is: 1,472,117.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,691.85 : 3,868,166.26 = 981,378.73 : x
  2. Step 2: Convert to fraction form
    2,578,691.85/3,868,166.26 = 981,378.73/x
  3. Step 3: Cross multiply
    2,578,691.85x = 3,868,166.26 × 981,378.73
  4. Step 4: Simplify right side
    2,578,691.85x = 3,796,136,092,209.33
  5. Step 5: Solve for x
    x = 3,796,136,092,209.33/2,578,691.85
  6. Step 6: Final answer
    x = 1,472,117.00

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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.