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Finding the Fourth Proportional to 842,427, 1,263,640.50 and 251,451

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Solution

The fourth proportional to 842,427, 1,263,640.50 and 251,451 is: 377,176.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,427 : 1,263,640.50 = 251,451 : x
  2. Step 2: Convert to fraction form
    842,427/1,263,640.50 = 251,451/x
  3. Step 3: Cross multiply
    842,427x = 1,263,640.50 × 251,451
  4. Step 4: Simplify right side
    842,427x = 317,743,667,365.50
  5. Step 5: Solve for x
    x = 317,743,667,365.50/842,427
  6. Step 6: Final answer
    x = 377,176.50

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1.5x scale

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.