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Finding the Fourth Proportional to 635,639.76, 876,968.73 and 359,959.92

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Solution

The fourth proportional to 635,639.76, 876,968.73 and 359,959.92 is: 496,623.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,639.76 : 876,968.73 = 359,959.92 : x
  2. Step 2: Convert to fraction form
    635,639.76/876,968.73 = 359,959.92/x
  3. Step 3: Cross multiply
    635,639.76x = 876,968.73 × 359,959.92
  4. Step 4: Simplify right side
    635,639.76x = 315,673,593,893.30
  5. Step 5: Solve for x
    x = 315,673,593,893.30/635,639.76
  6. Step 6: Final answer
    x = 496,623.42

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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.