Home / 2,679,419.20-4,019,128.80-996,174.40

Finding the Fourth Proportional to 2,679,419.20, 4,019,128.80 and 996,174.40

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Solution

The fourth proportional to 2,679,419.20, 4,019,128.80 and 996,174.40 is: 1,494,261.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679,419.20 : 4,019,128.80 = 996,174.40 : x
  2. Step 2: Convert to fraction form
    2,679,419.20/4,019,128.80 = 996,174.40/x
  3. Step 3: Cross multiply
    2,679,419.20x = 4,019,128.80 × 996,174.40
  4. Step 4: Simplify right side
    2,679,419.20x = 4,003,753,220,862.72
  5. Step 5: Solve for x
    x = 4,003,753,220,862.72/2,679,419.20
  6. Step 6: Final answer
    x = 1,494,261.60

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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.