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Finding the Fourth Proportional to 426.61, 588.15 and 417.41

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Solution

The fourth proportional to 426.61, 588.15 and 417.41 is: 575.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    426.61 : 588.15 = 417.41 : x
  2. Step 2: Convert to fraction form
    426.61/588.15 = 417.41/x
  3. Step 3: Cross multiply
    426.61x = 588.15 × 417.41
  4. Step 4: Simplify right side
    426.61x = 245,497.60
  5. Step 5: Solve for x
    x = 245,497.60/426.61
  6. Step 6: Final answer
    x = 575.46

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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.