Home / 685,233.97-1,027,272.94-431,956.25

Finding the Fourth Proportional to 685,233.97, 1,027,272.94 and 431,956.25

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Solution

The fourth proportional to 685,233.97, 1,027,272.94 and 431,956.25 is: 647,570.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,233.97 : 1,027,272.94 = 431,956.25 : x
  2. Step 2: Convert to fraction form
    685,233.97/1,027,272.94 = 431,956.25/x
  3. Step 3: Cross multiply
    685,233.97x = 1,027,272.94 × 431,956.25
  4. Step 4: Simplify right side
    685,233.97x = 443,736,960,672.62
  5. Step 5: Solve for x
    x = 443,736,960,672.62/685,233.97
  6. Step 6: Final answer
    x = 647,570.00

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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.