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Finding the Fourth Proportional to 582.07, 871.99 and 557.37

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Solution

The fourth proportional to 582.07, 871.99 and 557.37 is: 834.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.07 : 871.99 = 557.37 : x
  2. Step 2: Convert to fraction form
    582.07/871.99 = 557.37/x
  3. Step 3: Cross multiply
    582.07x = 871.99 × 557.37
  4. Step 4: Simplify right side
    582.07x = 486,021.07
  5. Step 5: Solve for x
    x = 486,021.07/582.07
  6. Step 6: Final answer
    x = 834.99

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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.