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Finding the Third Proportional to 354,690 and 771,588

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Solution

The third proportional to 354,690 and 771,588 is: 1,678,502.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,690 : 771,588 = 771,588 : x
  2. Step 2: Convert to fraction form
    354,690/771,588 = 771,588/x
  3. Step 3: Cross multiply
    354,690x = 771,588 × 771,588
  4. Step 4: Simplify right side
    354,690x = 595,348,041,744
  5. Step 5: Solve for x
    x = 595,348,041,744/354,690
  6. Step 6: Final answer
    x = 1,678,502.47

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.