Home / 2,147,990.40-2,964,211.20-1,230,422.40

Finding the Fourth Proportional to 2,147,990.40, 2,964,211.20 and 1,230,422.40

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Solution

The fourth proportional to 2,147,990.40, 2,964,211.20 and 1,230,422.40 is: 1,697,974.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147,990.40 : 2,964,211.20 = 1,230,422.40 : x
  2. Step 2: Convert to fraction form
    2,147,990.40/2,964,211.20 = 1,230,422.40/x
  3. Step 3: Cross multiply
    2,147,990.40x = 2,964,211.20 × 1,230,422.40
  4. Step 4: Simplify right side
    2,147,990.40x = 3,647,231,858,810.88
  5. Step 5: Solve for x
    x = 3,647,231,858,810.88/2,147,990.40
  6. Step 6: Final answer
    x = 1,697,974.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.