Home / 1,386,915.80-2,080,373.70-1,229,451.80

Finding the Fourth Proportional to 1,386,915.80, 2,080,373.70 and 1,229,451.80

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Solution

The fourth proportional to 1,386,915.80, 2,080,373.70 and 1,229,451.80 is: 1,844,177.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,915.80 : 2,080,373.70 = 1,229,451.80 : x
  2. Step 2: Convert to fraction form
    1,386,915.80/2,080,373.70 = 1,229,451.80/x
  3. Step 3: Cross multiply
    1,386,915.80x = 2,080,373.70 × 1,229,451.80
  4. Step 4: Simplify right side
    1,386,915.80x = 2,557,719,190,137.66
  5. Step 5: Solve for x
    x = 2,557,719,190,137.66/1,386,915.80
  6. Step 6: Final answer
    x = 1,844,177.70

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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.