Home / 2,257,398.90-3,115,086.21-1,238,722.74

Finding the Fourth Proportional to 2,257,398.90, 3,115,086.21 and 1,238,722.74

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Solution

The fourth proportional to 2,257,398.90, 3,115,086.21 and 1,238,722.74 is: 1,709,369.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257,398.90 : 3,115,086.21 = 1,238,722.74 : x
  2. Step 2: Convert to fraction form
    2,257,398.90/3,115,086.21 = 1,238,722.74/x
  3. Step 3: Cross multiply
    2,257,398.90x = 3,115,086.21 × 1,238,722.74
  4. Step 4: Simplify right side
    2,257,398.90x = 3,858,728,125,387.42
  5. Step 5: Solve for x
    x = 3,858,728,125,387.42/2,257,398.90
  6. Step 6: Final answer
    x = 1,709,369.19

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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.