Home / 822,144.78-1,232,469.78-316,383.24

Finding the Fourth Proportional to 822,144.78, 1,232,469.78 and 316,383.24

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Solution

The fourth proportional to 822,144.78, 1,232,469.78 and 316,383.24 is: 474,287.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,144.78 : 1,232,469.78 = 316,383.24 : x
  2. Step 2: Convert to fraction form
    822,144.78/1,232,469.78 = 316,383.24/x
  3. Step 3: Cross multiply
    822,144.78x = 1,232,469.78 × 316,383.24
  4. Step 4: Simplify right side
    822,144.78x = 389,932,782,198.49
  5. Step 5: Solve for x
    x = 389,932,782,198.49/822,144.78
  6. Step 6: Final answer
    x = 474,287.24

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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.