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Finding the Fourth Proportional to 625,279.82, 862,896.06 and 349,668.60

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Solution

The fourth proportional to 625,279.82, 862,896.06 and 349,668.60 is: 482,548.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,279.82 : 862,896.06 = 349,668.60 : x
  2. Step 2: Convert to fraction form
    625,279.82/862,896.06 = 349,668.60/x
  3. Step 3: Cross multiply
    625,279.82x = 862,896.06 × 349,668.60
  4. Step 4: Simplify right side
    625,279.82x = 301,727,657,245.72
  5. Step 5: Solve for x
    x = 301,727,657,245.72/625,279.82
  6. Step 6: Final answer
    x = 482,548.21

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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.