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Finding the Fourth Proportional to 606,147.30, 909,330.30 and 305,872.20

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Solution

The fourth proportional to 606,147.30, 909,330.30 and 305,872.20 is: 458,863.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,147.30 : 909,330.30 = 305,872.20 : x
  2. Step 2: Convert to fraction form
    606,147.30/909,330.30 = 305,872.20/x
  3. Step 3: Cross multiply
    606,147.30x = 909,330.30 × 305,872.20
  4. Step 4: Simplify right side
    606,147.30x = 278,138,859,387.66
  5. Step 5: Solve for x
    x = 278,138,859,387.66/606,147.30
  6. Step 6: Final answer
    x = 458,863.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.