Home / 1,449,269.20-2,172,760.46-915,665.50

Finding the Fourth Proportional to 1,449,269.20, 2,172,760.46 and 915,665.50

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Solution

The fourth proportional to 1,449,269.20, 2,172,760.46 and 915,665.50 is: 1,372,775.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449,269.20 : 2,172,760.46 = 915,665.50 : x
  2. Step 2: Convert to fraction form
    1,449,269.20/2,172,760.46 = 915,665.50/x
  3. Step 3: Cross multiply
    1,449,269.20x = 2,172,760.46 × 915,665.50
  4. Step 4: Simplify right side
    1,449,269.20x = 1,989,521,792,986.13
  5. Step 5: Solve for x
    x = 1,989,521,792,986.13/1,449,269.20
  6. Step 6: Final answer
    x = 1,372,775.87

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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.