Home / 2,788,418.80-4,177,098.60-1,663,145.20

Finding the Fourth Proportional to 2,788,418.80, 4,177,098.60 and 1,663,145.20

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Solution

The fourth proportional to 2,788,418.80, 4,177,098.60 and 1,663,145.20 is: 2,491,419.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788,418.80 : 4,177,098.60 = 1,663,145.20 : x
  2. Step 2: Convert to fraction form
    2,788,418.80/4,177,098.60 = 1,663,145.20/x
  3. Step 3: Cross multiply
    2,788,418.80x = 4,177,098.60 × 1,663,145.20
  4. Step 4: Simplify right side
    2,788,418.80x = 6,947,121,486,516.72
  5. Step 5: Solve for x
    x = 6,947,121,486,516.72/2,788,418.80
  6. Step 6: Final answer
    x = 2,491,419.68

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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.