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Finding the Fourth Proportional to 886,716.80, 1,330,269.60 and 437,652.80

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Solution

The fourth proportional to 886,716.80, 1,330,269.60 and 437,652.80 is: 656,575.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,716.80 : 1,330,269.60 = 437,652.80 : x
  2. Step 2: Convert to fraction form
    886,716.80/1,330,269.60 = 437,652.80/x
  3. Step 3: Cross multiply
    886,716.80x = 1,330,269.60 × 437,652.80
  4. Step 4: Simplify right side
    886,716.80x = 582,196,215,194.88
  5. Step 5: Solve for x
    x = 582,196,215,194.88/886,716.80
  6. Step 6: Final answer
    x = 656,575.15

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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.