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Finding the Fourth Proportional to 672.35, 925.91 and 605.39

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Solution

The fourth proportional to 672.35, 925.91 and 605.39 is: 833.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.35 : 925.91 = 605.39 : x
  2. Step 2: Convert to fraction form
    672.35/925.91 = 605.39/x
  3. Step 3: Cross multiply
    672.35x = 925.91 × 605.39
  4. Step 4: Simplify right side
    672.35x = 560,529.00
  5. Step 5: Solve for x
    x = 560,529.00/672.35
  6. Step 6: Final answer
    x = 833.69

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.