Home / 3,987,415.20-5,981,122.80-2,394,890.40

Finding the Fourth Proportional to 3,987,415.20, 5,981,122.80 and 2,394,890.40

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Solution

The fourth proportional to 3,987,415.20, 5,981,122.80 and 2,394,890.40 is: 3,592,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,415.20 : 5,981,122.80 = 2,394,890.40 : x
  2. Step 2: Convert to fraction form
    3,987,415.20/5,981,122.80 = 2,394,890.40/x
  3. Step 3: Cross multiply
    3,987,415.20x = 5,981,122.80 × 2,394,890.40
  4. Step 4: Simplify right side
    3,987,415.20x = 14,324,133,574,941.12
  5. Step 5: Solve for x
    x = 14,324,133,574,941.12/3,987,415.20
  6. Step 6: Final answer
    x = 3,592,335.60

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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.