Home / 1,386,936.60-2,080,404.90-1,228,306.20

Finding the Fourth Proportional to 1,386,936.60, 2,080,404.90 and 1,228,306.20

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Solution

The fourth proportional to 1,386,936.60, 2,080,404.90 and 1,228,306.20 is: 1,842,459.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,936.60 : 2,080,404.90 = 1,228,306.20 : x
  2. Step 2: Convert to fraction form
    1,386,936.60/2,080,404.90 = 1,228,306.20/x
  3. Step 3: Cross multiply
    1,386,936.60x = 2,080,404.90 × 1,228,306.20
  4. Step 4: Simplify right side
    1,386,936.60x = 2,555,374,237,180.38
  5. Step 5: Solve for x
    x = 2,555,374,237,180.38/1,386,936.60
  6. Step 6: Final answer
    x = 1,842,459.30

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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.