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Finding the Fourth Proportional to 551.69, 760.01 and 426.58

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Solution

The fourth proportional to 551.69, 760.01 and 426.58 is: 587.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.69 : 760.01 = 426.58 : x
  2. Step 2: Convert to fraction form
    551.69/760.01 = 426.58/x
  3. Step 3: Cross multiply
    551.69x = 760.01 × 426.58
  4. Step 4: Simplify right side
    551.69x = 324,205.07
  5. Step 5: Solve for x
    x = 324,205.07/551.69
  6. Step 6: Final answer
    x = 587.66

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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.