Home / 1,188,865.28-1,782,923.68-389,961.04

Finding the Fourth Proportional to 1,188,865.28, 1,782,923.68 and 389,961.04

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Solution

The fourth proportional to 1,188,865.28, 1,782,923.68 and 389,961.04 is: 584,818.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,865.28 : 1,782,923.68 = 389,961.04 : x
  2. Step 2: Convert to fraction form
    1,188,865.28/1,782,923.68 = 389,961.04/x
  3. Step 3: Cross multiply
    1,188,865.28x = 1,782,923.68 × 389,961.04
  4. Step 4: Simplify right side
    1,188,865.28x = 695,270,772,493.43
  5. Step 5: Solve for x
    x = 695,270,772,493.43/1,188,865.28
  6. Step 6: Final answer
    x = 584,818.81

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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.