Home / 2,017,375.20-3,021,915.60-1,387,000.80

Finding the Fourth Proportional to 2,017,375.20, 3,021,915.60 and 1,387,000.80

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Solution

The fourth proportional to 2,017,375.20, 3,021,915.60 and 1,387,000.80 is: 2,077,649.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017,375.20 : 3,021,915.60 = 1,387,000.80 : x
  2. Step 2: Convert to fraction form
    2,017,375.20/3,021,915.60 = 1,387,000.80/x
  3. Step 3: Cross multiply
    2,017,375.20x = 3,021,915.60 × 1,387,000.80
  4. Step 4: Simplify right side
    2,017,375.20x = 4,191,399,354,732.48
  5. Step 5: Solve for x
    x = 4,191,399,354,732.48/2,017,375.20
  6. Step 6: Final answer
    x = 2,077,649.89

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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.