Home / 3,987,923.40-5,981,885.10-1,328,531.40

Finding the Fourth Proportional to 3,987,923.40, 5,981,885.10 and 1,328,531.40

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Solution

The fourth proportional to 3,987,923.40, 5,981,885.10 and 1,328,531.40 is: 1,992,797.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,923.40 : 5,981,885.10 = 1,328,531.40 : x
  2. Step 2: Convert to fraction form
    3,987,923.40/5,981,885.10 = 1,328,531.40/x
  3. Step 3: Cross multiply
    3,987,923.40x = 5,981,885.10 × 1,328,531.40
  4. Step 4: Simplify right side
    3,987,923.40x = 7,947,122,186,542.14
  5. Step 5: Solve for x
    x = 7,947,122,186,542.14/3,987,923.40
  6. Step 6: Final answer
    x = 1,992,797.10

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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.