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Finding the Fourth Proportional to 656,447.94, 984,671.91 and 207,203.85

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Solution

The fourth proportional to 656,447.94, 984,671.91 and 207,203.85 is: 310,805.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,447.94 : 984,671.91 = 207,203.85 : x
  2. Step 2: Convert to fraction form
    656,447.94/984,671.91 = 207,203.85/x
  3. Step 3: Cross multiply
    656,447.94x = 984,671.91 × 207,203.85
  4. Step 4: Simplify right side
    656,447.94x = 204,027,810,738.85
  5. Step 5: Solve for x
    x = 204,027,810,738.85/656,447.94
  6. Step 6: Final answer
    x = 310,805.78

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Double scale
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Similar ratio
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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.