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Finding the Third Proportional to 289,502.50 and 637,902.50

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Solution

The third proportional to 289,502.50 and 637,902.50 is: 1,405,582.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,502.50 : 637,902.50 = 637,902.50 : x
  2. Step 2: Convert to fraction form
    289,502.50/637,902.50 = 637,902.50/x
  3. Step 3: Cross multiply
    289,502.50x = 637,902.50 × 637,902.50
  4. Step 4: Simplify right side
    289,502.50x = 406,919,599,506.25
  5. Step 5: Solve for x
    x = 406,919,599,506.25/289,502.50
  6. Step 6: Final answer
    x = 1,405,582.33

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.