Home / 1,321,337.41-1,981,695.95-745,209.86

Finding the Fourth Proportional to 1,321,337.41, 1,981,695.95 and 745,209.86

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Solution

The fourth proportional to 1,321,337.41, 1,981,695.95 and 745,209.86 is: 1,117,639.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,337.41 : 1,981,695.95 = 745,209.86 : x
  2. Step 2: Convert to fraction form
    1,321,337.41/1,981,695.95 = 745,209.86/x
  3. Step 3: Cross multiply
    1,321,337.41x = 1,981,695.95 × 745,209.86
  4. Step 4: Simplify right side
    1,321,337.41x = 1,476,779,350,622.08
  5. Step 5: Solve for x
    x = 1,476,779,350,622.08/1,321,337.41
  6. Step 6: Final answer
    x = 1,117,639.86

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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.