Home / 1,981,439.12-2,971,221.88-767,584.30

Finding the Fourth Proportional to 1,981,439.12, 2,971,221.88 and 767,584.30

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Solution

The fourth proportional to 1,981,439.12, 2,971,221.88 and 767,584.30 is: 1,151,013.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,439.12 : 2,971,221.88 = 767,584.30 : x
  2. Step 2: Convert to fraction form
    1,981,439.12/2,971,221.88 = 767,584.30/x
  3. Step 3: Cross multiply
    1,981,439.12x = 2,971,221.88 × 767,584.30
  4. Step 4: Simplify right side
    1,981,439.12x = 2,280,663,248,210.45
  5. Step 5: Solve for x
    x = 2,280,663,248,210.45/1,981,439.12
  6. Step 6: Final answer
    x = 1,151,013.54

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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.