Home / 731,651.20-1,099,809.60-689,660.80

Finding the Fourth Proportional to 731,651.20, 1,099,809.60 and 689,660.80

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Solution

The fourth proportional to 731,651.20, 1,099,809.60 and 689,660.80 is: 1,036,690.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,651.20 : 1,099,809.60 = 689,660.80 : x
  2. Step 2: Convert to fraction form
    731,651.20/1,099,809.60 = 689,660.80/x
  3. Step 3: Cross multiply
    731,651.20x = 1,099,809.60 × 689,660.80
  4. Step 4: Simplify right side
    731,651.20x = 758,495,568,583.68
  5. Step 5: Solve for x
    x = 758,495,568,583.68/731,651.20
  6. Step 6: Final answer
    x = 1,036,690.12

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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.