Home / 992,517.96-1,489,389.28-459,939.72

Finding the Fourth Proportional to 992,517.96, 1,489,389.28 and 459,939.72

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Solution

The fourth proportional to 992,517.96, 1,489,389.28 and 459,939.72 is: 690,193.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,517.96 : 1,489,389.28 = 459,939.72 : x
  2. Step 2: Convert to fraction form
    992,517.96/1,489,389.28 = 459,939.72/x
  3. Step 3: Cross multiply
    992,517.96x = 1,489,389.28 × 459,939.72
  4. Step 4: Simplify right side
    992,517.96x = 685,029,288,414.20
  5. Step 5: Solve for x
    x = 685,029,288,414.20/992,517.96
  6. Step 6: Final answer
    x = 690,193.34

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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.