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Finding the Fourth Proportional to 635,849.02, 877,471.44 and 349,387.54

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Solution

The fourth proportional to 635,849.02, 877,471.44 and 349,387.54 is: 482,154.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,849.02 : 877,471.44 = 349,387.54 : x
  2. Step 2: Convert to fraction form
    635,849.02/877,471.44 = 349,387.54/x
  3. Step 3: Cross multiply
    635,849.02x = 877,471.44 × 349,387.54
  4. Step 4: Simplify right side
    635,849.02x = 306,577,587,841.86
  5. Step 5: Solve for x
    x = 306,577,587,841.86/635,849.02
  6. Step 6: Final answer
    x = 482,154.69

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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.