Home / 481,253.58-721,631.19-256,553.66

Finding the Fourth Proportional to 481,253.58, 721,631.19 and 256,553.66

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Solution

The fourth proportional to 481,253.58, 721,631.19 and 256,553.66 is: 384,697.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,253.58 : 721,631.19 = 256,553.66 : x
  2. Step 2: Convert to fraction form
    481,253.58/721,631.19 = 256,553.66/x
  3. Step 3: Cross multiply
    481,253.58x = 721,631.19 × 256,553.66
  4. Step 4: Simplify right side
    481,253.58x = 185,137,122,964.66
  5. Step 5: Solve for x
    x = 185,137,122,964.66/481,253.58
  6. Step 6: Final answer
    x = 384,697.65

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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.