Home / 1,393,480.80-2,086,138.80-1,040,061.60

Finding the Fourth Proportional to 1,393,480.80, 2,086,138.80 and 1,040,061.60

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Solution

The fourth proportional to 1,393,480.80, 2,086,138.80 and 1,040,061.60 is: 1,557,045.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,480.80 : 2,086,138.80 = 1,040,061.60 : x
  2. Step 2: Convert to fraction form
    1,393,480.80/2,086,138.80 = 1,040,061.60/x
  3. Step 3: Cross multiply
    1,393,480.80x = 2,086,138.80 × 1,040,061.60
  4. Step 4: Simplify right side
    1,393,480.80x = 2,169,712,858,150.08
  5. Step 5: Solve for x
    x = 2,169,712,858,150.08/1,393,480.80
  6. Step 6: Final answer
    x = 1,557,045.39

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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.