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Finding the Third Proportional to 318,055 and 674,030

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Solution

The third proportional to 318,055 and 674,030 is: 1,428,421.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,055 : 674,030 = 674,030 : x
  2. Step 2: Convert to fraction form
    318,055/674,030 = 674,030/x
  3. Step 3: Cross multiply
    318,055x = 674,030 × 674,030
  4. Step 4: Simplify right side
    318,055x = 454,316,440,900
  5. Step 5: Solve for x
    x = 454,316,440,900/318,055
  6. Step 6: Final answer
    x = 1,428,421.00

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.