Home / 1,222,489.20-1,830,234.60-1,082,521.20

Finding the Fourth Proportional to 1,222,489.20, 1,830,234.60 and 1,082,521.20

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Solution

The fourth proportional to 1,222,489.20, 1,830,234.60 and 1,082,521.20 is: 1,620,683.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,489.20 : 1,830,234.60 = 1,082,521.20 : x
  2. Step 2: Convert to fraction form
    1,222,489.20/1,830,234.60 = 1,082,521.20/x
  3. Step 3: Cross multiply
    1,222,489.20x = 1,830,234.60 × 1,082,521.20
  4. Step 4: Simplify right side
    1,222,489.20x = 1,981,267,755,473.52
  5. Step 5: Solve for x
    x = 1,981,267,755,473.52/1,222,489.20
  6. Step 6: Final answer
    x = 1,620,683.24

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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.