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Finding the Fourth Proportional to 635,318.73, 876,753.99 and 348,840

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Solution

The fourth proportional to 635,318.73, 876,753.99 and 348,840 is: 481,406.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,318.73 : 876,753.99 = 348,840 : x
  2. Step 2: Convert to fraction form
    635,318.73/876,753.99 = 348,840/x
  3. Step 3: Cross multiply
    635,318.73x = 876,753.99 × 348,840
  4. Step 4: Simplify right side
    635,318.73x = 305,846,861,871.60
  5. Step 5: Solve for x
    x = 305,846,861,871.60/635,318.73
  6. Step 6: Final answer
    x = 481,406.97

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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.