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Finding the Fourth Proportional to 520,229.06, 717,965.34 and 326,668.64

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Solution

The fourth proportional to 520,229.06, 717,965.34 and 326,668.64 is: 450,833.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,229.06 : 717,965.34 = 326,668.64 : x
  2. Step 2: Convert to fraction form
    520,229.06/717,965.34 = 326,668.64/x
  3. Step 3: Cross multiply
    520,229.06x = 717,965.34 × 326,668.64
  4. Step 4: Simplify right side
    520,229.06x = 234,536,761,184.94
  5. Step 5: Solve for x
    x = 234,536,761,184.94/520,229.06
  6. Step 6: Final answer
    x = 450,833.64

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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.