Home / 1,040,203.70-1,557,195.15-978,686.90

Finding the Fourth Proportional to 1,040,203.70, 1,557,195.15 and 978,686.90

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Solution

The fourth proportional to 1,040,203.70, 1,557,195.15 and 978,686.90 is: 1,465,103.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,203.70 : 1,557,195.15 = 978,686.90 : x
  2. Step 2: Convert to fraction form
    1,040,203.70/1,557,195.15 = 978,686.90/x
  3. Step 3: Cross multiply
    1,040,203.70x = 1,557,195.15 × 978,686.90
  4. Step 4: Simplify right side
    1,040,203.70x = 1,524,006,494,048.54
  5. Step 5: Solve for x
    x = 1,524,006,494,048.54/1,040,203.70
  6. Step 6: Final answer
    x = 1,465,103.90

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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.