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Finding the Fourth Proportional to 611.87, 844.43 and 501.03

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Solution

The fourth proportional to 611.87, 844.43 and 501.03 is: 691.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.87 : 844.43 = 501.03 : x
  2. Step 2: Convert to fraction form
    611.87/844.43 = 501.03/x
  3. Step 3: Cross multiply
    611.87x = 844.43 × 501.03
  4. Step 4: Simplify right side
    611.87x = 423,082.26
  5. Step 5: Solve for x
    x = 423,082.26/611.87
  6. Step 6: Final answer
    x = 691.46

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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.