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Finding the Fourth Proportional to 490,201.26, 676,494.15 and 272,419.11

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Solution

The fourth proportional to 490,201.26, 676,494.15 and 272,419.11 is: 375,947.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,201.26 : 676,494.15 = 272,419.11 : x
  2. Step 2: Convert to fraction form
    490,201.26/676,494.15 = 272,419.11/x
  3. Step 3: Cross multiply
    490,201.26x = 676,494.15 × 272,419.11
  4. Step 4: Simplify right side
    490,201.26x = 184,289,936,908.04
  5. Step 5: Solve for x
    x = 184,289,936,908.04/490,201.26
  6. Step 6: Final answer
    x = 375,947.50

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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.