Home / 2,261,574.90-3,120,937.11-1,242,957.78

Finding the Fourth Proportional to 2,261,574.90, 3,120,937.11 and 1,242,957.78

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Solution

The fourth proportional to 2,261,574.90, 3,120,937.11 and 1,242,957.78 is: 1,715,261.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261,574.90 : 3,120,937.11 = 1,242,957.78 : x
  2. Step 2: Convert to fraction form
    2,261,574.90/3,120,937.11 = 1,242,957.78/x
  3. Step 3: Cross multiply
    2,261,574.90x = 3,120,937.11 × 1,242,957.78
  4. Step 4: Simplify right side
    2,261,574.90x = 3,879,193,061,765.22
  5. Step 5: Solve for x
    x = 3,879,193,061,765.22/2,261,574.90
  6. Step 6: Final answer
    x = 1,715,261.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.