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Finding the Fourth Proportional to 800,568.86, 1,200,851.84 and 260,824.50

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Solution

The fourth proportional to 800,568.86, 1,200,851.84 and 260,824.50 is: 391,236.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,568.86 : 1,200,851.84 = 260,824.50 : x
  2. Step 2: Convert to fraction form
    800,568.86/1,200,851.84 = 260,824.50/x
  3. Step 3: Cross multiply
    800,568.86x = 1,200,851.84 × 260,824.50
  4. Step 4: Simplify right side
    800,568.86x = 313,211,580,742.08
  5. Step 5: Solve for x
    x = 313,211,580,742.08/800,568.86
  6. Step 6: Final answer
    x = 391,236.28

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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.