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Finding the Fourth Proportional to 549,781.68, 758,680.34 and 304,756.14

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Solution

The fourth proportional to 549,781.68, 758,680.34 and 304,756.14 is: 420,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,781.68 : 758,680.34 = 304,756.14 : x
  2. Step 2: Convert to fraction form
    549,781.68/758,680.34 = 304,756.14/x
  3. Step 3: Cross multiply
    549,781.68x = 758,680.34 × 304,756.14
  4. Step 4: Simplify right side
    549,781.68x = 231,212,491,912.29
  5. Step 5: Solve for x
    x = 231,212,491,912.29/549,781.68
  6. Step 6: Final answer
    x = 420,553.29

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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.