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Finding the Fourth Proportional to 620.52, 934.98 and 514.68

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Solution

The fourth proportional to 620.52, 934.98 and 514.68 is: 775.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.52 : 934.98 = 514.68 : x
  2. Step 2: Convert to fraction form
    620.52/934.98 = 514.68/x
  3. Step 3: Cross multiply
    620.52x = 934.98 × 514.68
  4. Step 4: Simplify right side
    620.52x = 481,215.51
  5. Step 5: Solve for x
    x = 481,215.51/620.52
  6. Step 6: Final answer
    x = 775.50

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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.