Home / 2,945,121.12-4,417,778.07-815,026.86

Finding the Fourth Proportional to 2,945,121.12, 4,417,778.07 and 815,026.86

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Solution

The fourth proportional to 2,945,121.12, 4,417,778.07 and 815,026.86 is: 1,222,566.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945,121.12 : 4,417,778.07 = 815,026.86 : x
  2. Step 2: Convert to fraction form
    2,945,121.12/4,417,778.07 = 815,026.86/x
  3. Step 3: Cross multiply
    2,945,121.12x = 4,417,778.07 × 815,026.86
  4. Step 4: Simplify right side
    2,945,121.12x = 3,600,607,788,568.96
  5. Step 5: Solve for x
    x = 3,600,607,788,568.96/2,945,121.12
  6. Step 6: Final answer
    x = 1,222,566.96

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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.