Home / 1,375,729.20-2,061,844.20-1,225,263.60

Finding the Fourth Proportional to 1,375,729.20, 2,061,844.20 and 1,225,263.60

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Solution

The fourth proportional to 1,375,729.20, 2,061,844.20 and 1,225,263.60 is: 1,836,337.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,729.20 : 2,061,844.20 = 1,225,263.60 : x
  2. Step 2: Convert to fraction form
    1,375,729.20/2,061,844.20 = 1,225,263.60/x
  3. Step 3: Cross multiply
    1,375,729.20x = 2,061,844.20 × 1,225,263.60
  4. Step 4: Simplify right side
    1,375,729.20x = 2,526,302,647,131.12
  5. Step 5: Solve for x
    x = 2,526,302,647,131.12/1,375,729.20
  6. Step 6: Final answer
    x = 1,836,337.16

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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.