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Finding the Fourth Proportional to 474,540.28, 654,865.65 and 259,680.39

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Solution

The fourth proportional to 474,540.28, 654,865.65 and 259,680.39 is: 358,358.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,540.28 : 654,865.65 = 259,680.39 : x
  2. Step 2: Convert to fraction form
    474,540.28/654,865.65 = 259,680.39/x
  3. Step 3: Cross multiply
    474,540.28x = 654,865.65 × 259,680.39
  4. Step 4: Simplify right side
    474,540.28x = 170,055,767,389.60
  5. Step 5: Solve for x
    x = 170,055,767,389.60/474,540.28
  6. Step 6: Final answer
    x = 358,358.97

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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.