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Finding the Third Proportional to 342,123.75 and 529,791.75

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Solution

The third proportional to 342,123.75 and 529,791.75 is: 820,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,123.75 : 529,791.75 = 529,791.75 : x
  2. Step 2: Convert to fraction form
    342,123.75/529,791.75 = 529,791.75/x
  3. Step 3: Cross multiply
    342,123.75x = 529,791.75 × 529,791.75
  4. Step 4: Simplify right side
    342,123.75x = 280,679,298,368.06
  5. Step 5: Solve for x
    x = 280,679,298,368.06/342,123.75
  6. Step 6: Final answer
    x = 820,402.85

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.