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Finding the Third Proportional to 296,620 and 459,678

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Solution

The third proportional to 296,620 and 459,678 is: 712,372.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,620 : 459,678 = 459,678 : x
  2. Step 2: Convert to fraction form
    296,620/459,678 = 459,678/x
  3. Step 3: Cross multiply
    296,620x = 459,678 × 459,678
  4. Step 4: Simplify right side
    296,620x = 211,303,863,684
  5. Step 5: Solve for x
    x = 211,303,863,684/296,620
  6. Step 6: Final answer
    x = 712,372.27

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.