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Finding the Fourth Proportional to 484.48, 722.93 and 426.16

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Solution

The fourth proportional to 484.48, 722.93 and 426.16 is: 635.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.48 : 722.93 = 426.16 : x
  2. Step 2: Convert to fraction form
    484.48/722.93 = 426.16/x
  3. Step 3: Cross multiply
    484.48x = 722.93 × 426.16
  4. Step 4: Simplify right side
    484.48x = 308,083.85
  5. Step 5: Solve for x
    x = 308,083.85/484.48
  6. Step 6: Final answer
    x = 635.91

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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.