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Finding the Fourth Proportional to 831,323.60, 1,247,568.60 and 532,530.80

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Solution

The fourth proportional to 831,323.60, 1,247,568.60 and 532,530.80 is: 799,169.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,323.60 : 1,247,568.60 = 532,530.80 : x
  2. Step 2: Convert to fraction form
    831,323.60/1,247,568.60 = 532,530.80/x
  3. Step 3: Cross multiply
    831,323.60x = 1,247,568.60 × 532,530.80
  4. Step 4: Simplify right side
    831,323.60x = 664,368,704,612.88
  5. Step 5: Solve for x
    x = 664,368,704,612.88/831,323.60
  6. Step 6: Final answer
    x = 799,169.79

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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.