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Finding the Fourth Proportional to 682,344, 941,634.72 and 380,531.52

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Solution

The fourth proportional to 682,344, 941,634.72 and 380,531.52 is: 525,133.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,344 : 941,634.72 = 380,531.52 : x
  2. Step 2: Convert to fraction form
    682,344/941,634.72 = 380,531.52/x
  3. Step 3: Cross multiply
    682,344x = 941,634.72 × 380,531.52
  4. Step 4: Simplify right side
    682,344x = 358,321,691,286.37
  5. Step 5: Solve for x
    x = 358,321,691,286.37/682,344
  6. Step 6: Final answer
    x = 525,133.50

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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.