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Finding the Fourth Proportional to 451,660, 623,283.60 and 247,715.68

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Solution

The fourth proportional to 451,660, 623,283.60 and 247,715.68 is: 341,843.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,660 : 623,283.60 = 247,715.68 : x
  2. Step 2: Convert to fraction form
    451,660/623,283.60 = 247,715.68/x
  3. Step 3: Cross multiply
    451,660x = 623,283.60 × 247,715.68
  4. Step 4: Simplify right side
    451,660x = 154,397,120,806.85
  5. Step 5: Solve for x
    x = 154,397,120,806.85/451,660
  6. Step 6: Final answer
    x = 341,843.69

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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.