Home / 3,783,915.20-5,676,619.76-1,387,780.60

Finding the Fourth Proportional to 3,783,915.20, 5,676,619.76 and 1,387,780.60

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Solution

The fourth proportional to 3,783,915.20, 5,676,619.76 and 1,387,780.60 is: 2,081,944.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783,915.20 : 5,676,619.76 = 1,387,780.60 : x
  2. Step 2: Convert to fraction form
    3,783,915.20/5,676,619.76 = 1,387,780.60/x
  3. Step 3: Cross multiply
    3,783,915.20x = 5,676,619.76 × 1,387,780.60
  4. Step 4: Simplify right side
    3,783,915.20x = 7,877,902,765,782.56
  5. Step 5: Solve for x
    x = 7,877,902,765,782.56/3,783,915.20
  6. Step 6: Final answer
    x = 2,081,944.85

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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.