Home / 2,238,422.40-3,086,828.37-1,421,207.31

Finding the Fourth Proportional to 2,238,422.40, 3,086,828.37 and 1,421,207.31

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Solution

The fourth proportional to 2,238,422.40, 3,086,828.37 and 1,421,207.31 is: 1,959,872.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238,422.40 : 3,086,828.37 = 1,421,207.31 : x
  2. Step 2: Convert to fraction form
    2,238,422.40/3,086,828.37 = 1,421,207.31/x
  3. Step 3: Cross multiply
    2,238,422.40x = 3,086,828.37 × 1,421,207.31
  4. Step 4: Simplify right side
    2,238,422.40x = 4,387,023,044,159.39
  5. Step 5: Solve for x
    x = 4,387,023,044,159.39/2,238,422.40
  6. Step 6: Final answer
    x = 1,959,872.74

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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.