Home / 892,040.80-1,339,616.40-864,047.20

Finding the Fourth Proportional to 892,040.80, 1,339,616.40 and 864,047.20

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Solution

The fourth proportional to 892,040.80, 1,339,616.40 and 864,047.20 is: 1,297,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,040.80 : 1,339,616.40 = 864,047.20 : x
  2. Step 2: Convert to fraction form
    892,040.80/1,339,616.40 = 864,047.20/x
  3. Step 3: Cross multiply
    892,040.80x = 1,339,616.40 × 864,047.20
  4. Step 4: Simplify right side
    892,040.80x = 1,157,491,799,494.08
  5. Step 5: Solve for x
    x = 1,157,491,799,494.08/892,040.80
  6. Step 6: Final answer
    x = 1,297,577.20

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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.