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Finding the Fourth Proportional to 635,543.28, 877,060.28 and 349,089.84

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Solution

The fourth proportional to 635,543.28, 877,060.28 and 349,089.84 is: 481,749.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,543.28 : 877,060.28 = 349,089.84 : x
  2. Step 2: Convert to fraction form
    635,543.28/877,060.28 = 349,089.84/x
  3. Step 3: Cross multiply
    635,543.28x = 877,060.28 × 349,089.84
  4. Step 4: Simplify right side
    635,543.28x = 306,172,832,815.56
  5. Step 5: Solve for x
    x = 306,172,832,815.56/635,543.28
  6. Step 6: Final answer
    x = 481,749.78

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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.