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Finding the Third Proportional to 406,318.50 and 630,013.50

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Solution

The third proportional to 406,318.50 and 630,013.50 is: 976,861.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,318.50 : 630,013.50 = 630,013.50 : x
  2. Step 2: Convert to fraction form
    406,318.50/630,013.50 = 630,013.50/x
  3. Step 3: Cross multiply
    406,318.50x = 630,013.50 × 630,013.50
  4. Step 4: Simplify right side
    406,318.50x = 396,917,010,182.25
  5. Step 5: Solve for x
    x = 396,917,010,182.25/406,318.50
  6. Step 6: Final answer
    x = 976,861.77

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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.