Home / 1,855,092.76-2,779,015.20-1,278,613.60

Finding the Fourth Proportional to 1,855,092.76, 2,779,015.20 and 1,278,613.60

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Solution

The fourth proportional to 1,855,092.76, 2,779,015.20 and 1,278,613.60 is: 1,915,422.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855,092.76 : 2,779,015.20 = 1,278,613.60 : x
  2. Step 2: Convert to fraction form
    1,855,092.76/2,779,015.20 = 1,278,613.60/x
  3. Step 3: Cross multiply
    1,855,092.76x = 2,779,015.20 × 1,278,613.60
  4. Step 4: Simplify right side
    1,855,092.76x = 3,553,286,629,326.72
  5. Step 5: Solve for x
    x = 3,553,286,629,326.72/1,855,092.76
  6. Step 6: Final answer
    x = 1,915,422.62

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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.