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Finding the Fourth Proportional to 556.52, 833.54 and 542.75

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Solution

The fourth proportional to 556.52, 833.54 and 542.75 is: 812.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.52 : 833.54 = 542.75 : x
  2. Step 2: Convert to fraction form
    556.52/833.54 = 542.75/x
  3. Step 3: Cross multiply
    556.52x = 833.54 × 542.75
  4. Step 4: Simplify right side
    556.52x = 452,396.95
  5. Step 5: Solve for x
    x = 452,396.95/556.52
  6. Step 6: Final answer
    x = 812.91

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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.