Home / 986,229.12-1,480,007.97-387,119.31

Finding the Fourth Proportional to 986,229.12, 1,480,007.97 and 387,119.31

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Solution

The fourth proportional to 986,229.12, 1,480,007.97 and 387,119.31 is: 580,939.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,229.12 : 1,480,007.97 = 387,119.31 : x
  2. Step 2: Convert to fraction form
    986,229.12/1,480,007.97 = 387,119.31/x
  3. Step 3: Cross multiply
    986,229.12x = 1,480,007.97 × 387,119.31
  4. Step 4: Simplify right side
    986,229.12x = 572,939,664,140.90
  5. Step 5: Solve for x
    x = 572,939,664,140.90/986,229.12
  6. Step 6: Final answer
    x = 580,939.72

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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.