Home / 548,491.20-822,736.80-455,179.20

Finding the Fourth Proportional to 548,491.20, 822,736.80 and 455,179.20

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Solution

The fourth proportional to 548,491.20, 822,736.80 and 455,179.20 is: 682,768.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,491.20 : 822,736.80 = 455,179.20 : x
  2. Step 2: Convert to fraction form
    548,491.20/822,736.80 = 455,179.20/x
  3. Step 3: Cross multiply
    548,491.20x = 822,736.80 × 455,179.20
  4. Step 4: Simplify right side
    548,491.20x = 374,492,678,434.56
  5. Step 5: Solve for x
    x = 374,492,678,434.56/548,491.20
  6. Step 6: Final answer
    x = 682,768.80

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Similar ratio
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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.