Home / 1,253,608.20-1,879,706.25-400,479.48

Finding the Fourth Proportional to 1,253,608.20, 1,879,706.25 and 400,479.48

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Solution

The fourth proportional to 1,253,608.20, 1,879,706.25 and 400,479.48 is: 600,493.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,608.20 : 1,879,706.25 = 400,479.48 : x
  2. Step 2: Convert to fraction form
    1,253,608.20/1,879,706.25 = 400,479.48/x
  3. Step 3: Cross multiply
    1,253,608.20x = 1,879,706.25 × 400,479.48
  4. Step 4: Simplify right side
    1,253,608.20x = 752,783,781,552.75
  5. Step 5: Solve for x
    x = 752,783,781,552.75/1,253,608.20
  6. Step 6: Final answer
    x = 600,493.66

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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.