Home / 3,121,608-4,680,260.64-1,228,566.72

Finding the Fourth Proportional to 3,121,608, 4,680,260.64 and 1,228,566.72

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Solution

The fourth proportional to 3,121,608, 4,680,260.64 and 1,228,566.72 is: 1,842,003.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,608 : 4,680,260.64 = 1,228,566.72 : x
  2. Step 2: Convert to fraction form
    3,121,608/4,680,260.64 = 1,228,566.72/x
  3. Step 3: Cross multiply
    3,121,608x = 4,680,260.64 × 1,228,566.72
  4. Step 4: Simplify right side
    3,121,608x = 5,750,012,463,229.90
  5. Step 5: Solve for x
    x = 5,750,012,463,229.90/3,121,608
  6. Step 6: Final answer
    x = 1,842,003.37

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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.