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Finding the Third Proportional to 435,918 and 654,312

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Solution

The third proportional to 435,918 and 654,312 is: 982,120.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,918 : 654,312 = 654,312 : x
  2. Step 2: Convert to fraction form
    435,918/654,312 = 654,312/x
  3. Step 3: Cross multiply
    435,918x = 654,312 × 654,312
  4. Step 4: Simplify right side
    435,918x = 428,124,193,344
  5. Step 5: Solve for x
    x = 428,124,193,344/435,918
  6. Step 6: Final answer
    x = 982,120.93

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.