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Finding the Fourth Proportional to 635,636.76, 876,964.59 and 359,956.86

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Solution

The fourth proportional to 635,636.76, 876,964.59 and 359,956.86 is: 496,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,636.76 : 876,964.59 = 359,956.86 : x
  2. Step 2: Convert to fraction form
    635,636.76/876,964.59 = 359,956.86/x
  3. Step 3: Cross multiply
    635,636.76x = 876,964.59 × 359,956.86
  4. Step 4: Simplify right side
    635,636.76x = 315,669,420,147.59
  5. Step 5: Solve for x
    x = 315,669,420,147.59/635,636.76
  6. Step 6: Final answer
    x = 496,619.20

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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.