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Finding the Fourth Proportional to 607.24, 838.68 and 484.24

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Solution

The fourth proportional to 607.24, 838.68 and 484.24 is: 668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.24 : 838.68 = 484.24 : x
  2. Step 2: Convert to fraction form
    607.24/838.68 = 484.24/x
  3. Step 3: Cross multiply
    607.24x = 838.68 × 484.24
  4. Step 4: Simplify right side
    607.24x = 406,122.40
  5. Step 5: Solve for x
    x = 406,122.40/607.24
  6. Step 6: Final answer
    x = 668.80

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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.