Home / 1,981,432.40-2,970,180.30-914,613.80

Finding the Fourth Proportional to 1,981,432.40, 2,970,180.30 and 914,613.80

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Solution

The fourth proportional to 1,981,432.40, 2,970,180.30 and 914,613.80 is: 1,371,012.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,432.40 : 2,970,180.30 = 914,613.80 : x
  2. Step 2: Convert to fraction form
    1,981,432.40/2,970,180.30 = 914,613.80/x
  3. Step 3: Cross multiply
    1,981,432.40x = 2,970,180.30 × 914,613.80
  4. Step 4: Simplify right side
    1,981,432.40x = 2,716,567,890,868.14
  5. Step 5: Solve for x
    x = 2,716,567,890,868.14/1,981,432.40
  6. Step 6: Final answer
    x = 1,371,012.15

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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.