Home / 3,987,112.80-5,981,446.80-1,590,549.60

Finding the Fourth Proportional to 3,987,112.80, 5,981,446.80 and 1,590,549.60

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Solution

The fourth proportional to 3,987,112.80, 5,981,446.80 and 1,590,549.60 is: 2,386,134.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,112.80 : 5,981,446.80 = 1,590,549.60 : x
  2. Step 2: Convert to fraction form
    3,987,112.80/5,981,446.80 = 1,590,549.60/x
  3. Step 3: Cross multiply
    3,987,112.80x = 5,981,446.80 × 1,590,549.60
  4. Step 4: Simplify right side
    3,987,112.80x = 9,513,787,815,161.28
  5. Step 5: Solve for x
    x = 9,513,787,815,161.28/3,987,112.80
  6. Step 6: Final answer
    x = 2,386,134.60

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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.