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Finding the Fourth Proportional to 559.36, 835.03 and 486.48

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Solution

The fourth proportional to 559.36, 835.03 and 486.48 is: 726.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.36 : 835.03 = 486.48 : x
  2. Step 2: Convert to fraction form
    559.36/835.03 = 486.48/x
  3. Step 3: Cross multiply
    559.36x = 835.03 × 486.48
  4. Step 4: Simplify right side
    559.36x = 406,225.39
  5. Step 5: Solve for x
    x = 406,225.39/559.36
  6. Step 6: Final answer
    x = 726.23

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.