Home / 1,478,540.80-2,040,355.20-875,123.20

Finding the Fourth Proportional to 1,478,540.80, 2,040,355.20 and 875,123.20

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Solution

The fourth proportional to 1,478,540.80, 2,040,355.20 and 875,123.20 is: 1,207,651.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,540.80 : 2,040,355.20 = 875,123.20 : x
  2. Step 2: Convert to fraction form
    1,478,540.80/2,040,355.20 = 875,123.20/x
  3. Step 3: Cross multiply
    1,478,540.80x = 2,040,355.20 × 875,123.20
  4. Step 4: Simplify right side
    1,478,540.80x = 1,785,562,171,760.64
  5. Step 5: Solve for x
    x = 1,785,562,171,760.64/1,478,540.80
  6. Step 6: Final answer
    x = 1,207,651.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.