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Finding the Third Proportional to 644,398.50 and 946,866.75

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Solution

The third proportional to 644,398.50 and 946,866.75 is: 1,391,307.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,398.50 : 946,866.75 = 946,866.75 : x
  2. Step 2: Convert to fraction form
    644,398.50/946,866.75 = 946,866.75/x
  3. Step 3: Cross multiply
    644,398.50x = 946,866.75 × 946,866.75
  4. Step 4: Simplify right side
    644,398.50x = 896,556,642,255.56
  5. Step 5: Solve for x
    x = 896,556,642,255.56/644,398.50
  6. Step 6: Final answer
    x = 1,391,307.77

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.