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Finding the Fourth Proportional to 676.60, 933.30 and 502.12

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Solution

The fourth proportional to 676.60, 933.30 and 502.12 is: 692.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.60 : 933.30 = 502.12 : x
  2. Step 2: Convert to fraction form
    676.60/933.30 = 502.12/x
  3. Step 3: Cross multiply
    676.60x = 933.30 × 502.12
  4. Step 4: Simplify right side
    676.60x = 468,628.60
  5. Step 5: Solve for x
    x = 468,628.60/676.60
  6. Step 6: Final answer
    x = 692.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.