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Finding the Fourth Proportional to 635,299.43, 876,727.34 and 348,820.65

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Solution

The fourth proportional to 635,299.43, 876,727.34 and 348,820.65 is: 481,380.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,299.43 : 876,727.34 = 348,820.65 : x
  2. Step 2: Convert to fraction form
    635,299.43/876,727.34 = 348,820.65/x
  3. Step 3: Cross multiply
    635,299.43x = 876,727.34 × 348,820.65
  4. Step 4: Simplify right side
    635,299.43x = 305,820,598,867.47
  5. Step 5: Solve for x
    x = 305,820,598,867.47/635,299.43
  6. Step 6: Final answer
    x = 481,380.25

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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.