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Finding the Fourth Proportional to 582.46, 874.34 and 398.54

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Solution

The fourth proportional to 582.46, 874.34 and 398.54 is: 598.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.46 : 874.34 = 398.54 : x
  2. Step 2: Convert to fraction form
    582.46/874.34 = 398.54/x
  3. Step 3: Cross multiply
    582.46x = 874.34 × 398.54
  4. Step 4: Simplify right side
    582.46x = 348,458.47
  5. Step 5: Solve for x
    x = 348,458.47/582.46
  6. Step 6: Final answer
    x = 598.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.