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Finding the Fourth Proportional to 474,540.30, 654,865.55 and 259,680.31

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Solution

The fourth proportional to 474,540.30, 654,865.55 and 259,680.31 is: 358,358.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,540.30 : 654,865.55 = 259,680.31 : x
  2. Step 2: Convert to fraction form
    474,540.30/654,865.55 = 259,680.31/x
  3. Step 3: Cross multiply
    474,540.30x = 654,865.55 × 259,680.31
  4. Step 4: Simplify right side
    474,540.30x = 170,055,687,070.56
  5. Step 5: Solve for x
    x = 170,055,687,070.56/474,540.30
  6. Step 6: Final answer
    x = 358,358.79

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1.5x scale

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.