Home / 439,899.60-659,717.75-229,422.72

Finding the Fourth Proportional to 439,899.60, 659,717.75 and 229,422.72

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Solution

The fourth proportional to 439,899.60, 659,717.75 and 229,422.72 is: 344,065.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,899.60 : 659,717.75 = 229,422.72 : x
  2. Step 2: Convert to fraction form
    439,899.60/659,717.75 = 229,422.72/x
  3. Step 3: Cross multiply
    439,899.60x = 659,717.75 × 229,422.72
  4. Step 4: Simplify right side
    439,899.60x = 151,354,240,637.28
  5. Step 5: Solve for x
    x = 151,354,240,637.28/439,899.60
  6. Step 6: Final answer
    x = 344,065.42

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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.