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Finding the Fourth Proportional to 554.34, 837.81 and 544.78

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Solution

The fourth proportional to 554.34, 837.81 and 544.78 is: 823.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.34 : 837.81 = 544.78 : x
  2. Step 2: Convert to fraction form
    554.34/837.81 = 544.78/x
  3. Step 3: Cross multiply
    554.34x = 837.81 × 544.78
  4. Step 4: Simplify right side
    554.34x = 456,422.13
  5. Step 5: Solve for x
    x = 456,422.13/554.34
  6. Step 6: Final answer
    x = 823.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.