Home / 443,939.52-664,205.40-254,490.72

Finding the Fourth Proportional to 443,939.52, 664,205.40 and 254,490.72

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Solution

The fourth proportional to 443,939.52, 664,205.40 and 254,490.72 is: 380,759.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,939.52 : 664,205.40 = 254,490.72 : x
  2. Step 2: Convert to fraction form
    443,939.52/664,205.40 = 254,490.72/x
  3. Step 3: Cross multiply
    443,939.52x = 664,205.40 × 254,490.72
  4. Step 4: Simplify right side
    443,939.52x = 169,034,110,473.89
  5. Step 5: Solve for x
    x = 169,034,110,473.89/443,939.52
  6. Step 6: Final answer
    x = 380,759.32

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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.