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Finding the Fourth Proportional to 610.23, 841.39 and 505.44

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Solution

The fourth proportional to 610.23, 841.39 and 505.44 is: 696.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.23 : 841.39 = 505.44 : x
  2. Step 2: Convert to fraction form
    610.23/841.39 = 505.44/x
  3. Step 3: Cross multiply
    610.23x = 841.39 × 505.44
  4. Step 4: Simplify right side
    610.23x = 425,270.90
  5. Step 5: Solve for x
    x = 425,270.90/610.23
  6. Step 6: Final answer
    x = 696.90

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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.