Home / 3,120,132.40-4,677,865.80-1,321,543.60

Finding the Fourth Proportional to 3,120,132.40, 4,677,865.80 and 1,321,543.60

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Solution

The fourth proportional to 3,120,132.40, 4,677,865.80 and 1,321,543.60 is: 1,981,327.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,132.40 : 4,677,865.80 = 1,321,543.60 : x
  2. Step 2: Convert to fraction form
    3,120,132.40/4,677,865.80 = 1,321,543.60/x
  3. Step 3: Cross multiply
    3,120,132.40x = 4,677,865.80 × 1,321,543.60
  4. Step 4: Simplify right side
    3,120,132.40x = 6,182,003,609,648.88
  5. Step 5: Solve for x
    x = 6,182,003,609,648.88/3,120,132.40
  6. Step 6: Final answer
    x = 1,981,327.33

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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.