Home / 3,987,594.80-5,981,975.40-1,291,461.20

Finding the Fourth Proportional to 3,987,594.80, 5,981,975.40 and 1,291,461.20

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Solution

The fourth proportional to 3,987,594.80, 5,981,975.40 and 1,291,461.20 is: 1,937,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,594.80 : 5,981,975.40 = 1,291,461.20 : x
  2. Step 2: Convert to fraction form
    3,987,594.80/5,981,975.40 = 1,291,461.20/x
  3. Step 3: Cross multiply
    3,987,594.80x = 5,981,975.40 × 1,291,461.20
  4. Step 4: Simplify right side
    3,987,594.80x = 7,725,489,128,454.48
  5. Step 5: Solve for x
    x = 7,725,489,128,454.48/3,987,594.80
  6. Step 6: Final answer
    x = 1,937,380.68

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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.