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Finding the Fourth Proportional to 635,491.88, 876,975.24 and 345,100.65

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Solution

The fourth proportional to 635,491.88, 876,975.24 and 345,100.65 is: 476,236.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,491.88 : 876,975.24 = 345,100.65 : x
  2. Step 2: Convert to fraction form
    635,491.88/876,975.24 = 345,100.65/x
  3. Step 3: Cross multiply
    635,491.88x = 876,975.24 × 345,100.65
  4. Step 4: Simplify right side
    635,491.88x = 302,644,725,357.91
  5. Step 5: Solve for x
    x = 302,644,725,357.91/635,491.88
  6. Step 6: Final answer
    x = 476,236.97

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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.