Home / 823,699.78-1,235,076.46-438,974.88

Finding the Fourth Proportional to 823,699.78, 1,235,076.46 and 438,974.88

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Solution

The fourth proportional to 823,699.78, 1,235,076.46 and 438,974.88 is: 658,210.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,699.78 : 1,235,076.46 = 438,974.88 : x
  2. Step 2: Convert to fraction form
    823,699.78/1,235,076.46 = 438,974.88/x
  3. Step 3: Cross multiply
    823,699.78x = 1,235,076.46 × 438,974.88
  4. Step 4: Simplify right side
    823,699.78x = 542,167,540,819.33
  5. Step 5: Solve for x
    x = 542,167,540,819.33/823,699.78
  6. Step 6: Final answer
    x = 658,210.13

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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.