Home / 3,128,321.60-4,690,767.96-968,747.18

Finding the Fourth Proportional to 3,128,321.60, 4,690,767.96 and 968,747.18

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Solution

The fourth proportional to 3,128,321.60, 4,690,767.96 and 968,747.18 is: 1,452,589.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,321.60 : 4,690,767.96 = 968,747.18 : x
  2. Step 2: Convert to fraction form
    3,128,321.60/4,690,767.96 = 968,747.18/x
  3. Step 3: Cross multiply
    3,128,321.60x = 4,690,767.96 × 968,747.18
  4. Step 4: Simplify right side
    3,128,321.60x = 4,544,168,245,011.27
  5. Step 5: Solve for x
    x = 4,544,168,245,011.27/3,128,321.60
  6. Step 6: Final answer
    x = 1,452,589.87

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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.