Home / 820,162.20-1,230,243.30-745,366.80

Finding the Fourth Proportional to 820,162.20, 1,230,243.30 and 745,366.80

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Solution

The fourth proportional to 820,162.20, 1,230,243.30 and 745,366.80 is: 1,118,050.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,162.20 : 1,230,243.30 = 745,366.80 : x
  2. Step 2: Convert to fraction form
    820,162.20/1,230,243.30 = 745,366.80/x
  3. Step 3: Cross multiply
    820,162.20x = 1,230,243.30 × 745,366.80
  4. Step 4: Simplify right side
    820,162.20x = 916,982,511,742.44
  5. Step 5: Solve for x
    x = 916,982,511,742.44/820,162.20
  6. Step 6: Final answer
    x = 1,118,050.20

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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.