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Finding the Third Proportional to 297,054 and 641,455.50

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Solution

The third proportional to 297,054 and 641,455.50 is: 1,385,152.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,054 : 641,455.50 = 641,455.50 : x
  2. Step 2: Convert to fraction form
    297,054/641,455.50 = 641,455.50/x
  3. Step 3: Cross multiply
    297,054x = 641,455.50 × 641,455.50
  4. Step 4: Simplify right side
    297,054x = 411,465,158,480.25
  5. Step 5: Solve for x
    x = 411,465,158,480.25/297,054
  6. Step 6: Final answer
    x = 1,385,152.73

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.