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Finding the Fourth Proportional to 620.92, 934.99 and 544.72

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Solution

The fourth proportional to 620.92, 934.99 and 544.72 is: 820.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.92 : 934.99 = 544.72 : x
  2. Step 2: Convert to fraction form
    620.92/934.99 = 544.72/x
  3. Step 3: Cross multiply
    620.92x = 934.99 × 544.72
  4. Step 4: Simplify right side
    620.92x = 509,307.75
  5. Step 5: Solve for x
    x = 509,307.75/620.92
  6. Step 6: Final answer
    x = 820.25

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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.