Home / 1,188,144.86-1,781,505.52-378,179.40

Finding the Fourth Proportional to 1,188,144.86, 1,781,505.52 and 378,179.40

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Solution

The fourth proportional to 1,188,144.86, 1,781,505.52 and 378,179.40 is: 567,042.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,144.86 : 1,781,505.52 = 378,179.40 : x
  2. Step 2: Convert to fraction form
    1,188,144.86/1,781,505.52 = 378,179.40/x
  3. Step 3: Cross multiply
    1,188,144.86x = 1,781,505.52 × 378,179.40
  4. Step 4: Simplify right side
    1,188,144.86x = 673,728,688,650.29
  5. Step 5: Solve for x
    x = 673,728,688,650.29/1,188,144.86
  6. Step 6: Final answer
    x = 567,042.55

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1.5x scale

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.