Home / 820,144.80-1,230,217.20-707,951.70

Finding the Fourth Proportional to 820,144.80, 1,230,217.20 and 707,951.70

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Solution

The fourth proportional to 820,144.80, 1,230,217.20 and 707,951.70 is: 1,061,927.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,144.80 : 1,230,217.20 = 707,951.70 : x
  2. Step 2: Convert to fraction form
    820,144.80/1,230,217.20 = 707,951.70/x
  3. Step 3: Cross multiply
    820,144.80x = 1,230,217.20 × 707,951.70
  4. Step 4: Simplify right side
    820,144.80x = 870,934,358,109.24
  5. Step 5: Solve for x
    x = 870,934,358,109.24/820,144.80
  6. Step 6: Final answer
    x = 1,061,927.55

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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.