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Finding the Fourth Proportional to 635,768.64, 877,373.11 and 349,299.54

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Solution

The fourth proportional to 635,768.64, 877,373.11 and 349,299.54 is: 482,040.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,768.64 : 877,373.11 = 349,299.54 : x
  2. Step 2: Convert to fraction form
    635,768.64/877,373.11 = 349,299.54/x
  3. Step 3: Cross multiply
    635,768.64x = 877,373.11 × 349,299.54
  4. Step 4: Simplify right side
    635,768.64x = 306,466,023,731.37
  5. Step 5: Solve for x
    x = 306,466,023,731.37/635,768.64
  6. Step 6: Final answer
    x = 482,040.17

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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.