Home / 823,700.78-1,235,077.96-438,975.88

Finding the Fourth Proportional to 823,700.78, 1,235,077.96 and 438,975.88

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Solution

The fourth proportional to 823,700.78, 1,235,077.96 and 438,975.88 is: 658,211.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,700.78 : 1,235,077.96 = 438,975.88 : x
  2. Step 2: Convert to fraction form
    823,700.78/1,235,077.96 = 438,975.88/x
  3. Step 3: Cross multiply
    823,700.78x = 1,235,077.96 × 438,975.88
  4. Step 4: Simplify right side
    823,700.78x = 542,169,434,359.61
  5. Step 5: Solve for x
    x = 542,169,434,359.61/823,700.78
  6. Step 6: Final answer
    x = 658,211.63

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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.