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Finding the Fourth Proportional to 723.62, 998.75 and 461.59

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Solution

The fourth proportional to 723.62, 998.75 and 461.59 is: 637.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    723.62 : 998.75 = 461.59 : x
  2. Step 2: Convert to fraction form
    723.62/998.75 = 461.59/x
  3. Step 3: Cross multiply
    723.62x = 998.75 × 461.59
  4. Step 4: Simplify right side
    723.62x = 461,013.01
  5. Step 5: Solve for x
    x = 461,013.01/723.62
  6. Step 6: Final answer
    x = 637.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.