Home / 1,375,121.80-2,062,974.30-415,498.60

Finding the Fourth Proportional to 1,375,121.80, 2,062,974.30 and 415,498.60

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Solution

The fourth proportional to 1,375,121.80, 2,062,974.30 and 415,498.60 is: 623,336.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,121.80 : 2,062,974.30 = 415,498.60 : x
  2. Step 2: Convert to fraction form
    1,375,121.80/2,062,974.30 = 415,498.60/x
  3. Step 3: Cross multiply
    1,375,121.80x = 2,062,974.30 × 415,498.60
  4. Step 4: Simplify right side
    1,375,121.80x = 857,162,933,485.98
  5. Step 5: Solve for x
    x = 857,162,933,485.98/1,375,121.80
  6. Step 6: Final answer
    x = 623,336.01

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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.