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Finding the Fourth Proportional to 631.76, 867.38 and 593.36

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Solution

The fourth proportional to 631.76, 867.38 and 593.36 is: 814.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.76 : 867.38 = 593.36 : x
  2. Step 2: Convert to fraction form
    631.76/867.38 = 593.36/x
  3. Step 3: Cross multiply
    631.76x = 867.38 × 593.36
  4. Step 4: Simplify right side
    631.76x = 514,668.60
  5. Step 5: Solve for x
    x = 514,668.60/631.76
  6. Step 6: Final answer
    x = 814.66

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.