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Finding the Fourth Proportional to 556.83, 825.92 and 548.63

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Solution

The fourth proportional to 556.83, 825.92 and 548.63 is: 813.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.83 : 825.92 = 548.63 : x
  2. Step 2: Convert to fraction form
    556.83/825.92 = 548.63/x
  3. Step 3: Cross multiply
    556.83x = 825.92 × 548.63
  4. Step 4: Simplify right side
    556.83x = 453,117.62
  5. Step 5: Solve for x
    x = 453,117.62/556.83
  6. Step 6: Final answer
    x = 813.74

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.