Home / 1,324,957.56-1,987,436.94-426,399.18

Finding the Fourth Proportional to 1,324,957.56, 1,987,436.94 and 426,399.18

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Solution

The fourth proportional to 1,324,957.56, 1,987,436.94 and 426,399.18 is: 639,598.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,957.56 : 1,987,436.94 = 426,399.18 : x
  2. Step 2: Convert to fraction form
    1,324,957.56/1,987,436.94 = 426,399.18/x
  3. Step 3: Cross multiply
    1,324,957.56x = 1,987,436.94 × 426,399.18
  4. Step 4: Simplify right side
    1,324,957.56x = 847,441,481,517.71
  5. Step 5: Solve for x
    x = 847,441,481,517.71/1,324,957.56
  6. Step 6: Final answer
    x = 639,598.96

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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.