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Finding the Fourth Proportional to 458,319.78, 632,471.78 and 254,358.86

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Solution

The fourth proportional to 458,319.78, 632,471.78 and 254,358.86 is: 351,009.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,319.78 : 632,471.78 = 254,358.86 : x
  2. Step 2: Convert to fraction form
    458,319.78/632,471.78 = 254,358.86/x
  3. Step 3: Cross multiply
    458,319.78x = 632,471.78 × 254,358.86
  4. Step 4: Simplify right side
    458,319.78x = 160,874,800,942.97
  5. Step 5: Solve for x
    x = 160,874,800,942.97/458,319.78
  6. Step 6: Final answer
    x = 351,009.95

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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.