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Finding the Fourth Proportional to 635,122.30, 876,478.71 and 348,668.50

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Solution

The fourth proportional to 635,122.30, 876,478.71 and 348,668.50 is: 481,167.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,122.30 : 876,478.71 = 348,668.50 : x
  2. Step 2: Convert to fraction form
    635,122.30/876,478.71 = 348,668.50/x
  3. Step 3: Cross multiply
    635,122.30x = 876,478.71 × 348,668.50
  4. Step 4: Simplify right side
    635,122.30x = 305,600,517,097.64
  5. Step 5: Solve for x
    x = 305,600,517,097.64/635,122.30
  6. Step 6: Final answer
    x = 481,167.98

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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.