Home / 3,679,881.20-5,519,821.80-1,660,405.40

Finding the Fourth Proportional to 3,679,881.20, 5,519,821.80 and 1,660,405.40

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Solution

The fourth proportional to 3,679,881.20, 5,519,821.80 and 1,660,405.40 is: 2,490,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679,881.20 : 5,519,821.80 = 1,660,405.40 : x
  2. Step 2: Convert to fraction form
    3,679,881.20/5,519,821.80 = 1,660,405.40/x
  3. Step 3: Cross multiply
    3,679,881.20x = 5,519,821.80 × 1,660,405.40
  4. Step 4: Simplify right side
    3,679,881.20x = 9,165,141,923,757.72
  5. Step 5: Solve for x
    x = 9,165,141,923,757.72/3,679,881.20
  6. Step 6: Final answer
    x = 2,490,608.10

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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.