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Finding the Third Proportional to 450,280 and 684,704

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Solution

The third proportional to 450,280 and 684,704 is: 1,041,173.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,280 : 684,704 = 684,704 : x
  2. Step 2: Convert to fraction form
    450,280/684,704 = 684,704/x
  3. Step 3: Cross multiply
    450,280x = 684,704 × 684,704
  4. Step 4: Simplify right side
    450,280x = 468,819,567,616
  5. Step 5: Solve for x
    x = 468,819,567,616/450,280
  6. Step 6: Final answer
    x = 1,041,173.42

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.