Home / 548,766.30-821,983.05-455,454.30

Finding the Fourth Proportional to 548,766.30, 821,983.05 and 455,454.30

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Solution

The fourth proportional to 548,766.30, 821,983.05 and 455,454.30 is: 682,213.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,766.30 : 821,983.05 = 455,454.30 : x
  2. Step 2: Convert to fraction form
    548,766.30/821,983.05 = 455,454.30/x
  3. Step 3: Cross multiply
    548,766.30x = 821,983.05 × 455,454.30
  4. Step 4: Simplify right side
    548,766.30x = 374,375,714,649.62
  5. Step 5: Solve for x
    x = 374,375,714,649.62/548,766.30
  6. Step 6: Final answer
    x = 682,213.38

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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.