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Finding the Third Proportional to 450,740 and 918,180

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Solution

The third proportional to 450,740 and 918,180 is: 1,870,378.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,740 : 918,180 = 918,180 : x
  2. Step 2: Convert to fraction form
    450,740/918,180 = 918,180/x
  3. Step 3: Cross multiply
    450,740x = 918,180 × 918,180
  4. Step 4: Simplify right side
    450,740x = 843,054,512,400
  5. Step 5: Solve for x
    x = 843,054,512,400/450,740
  6. Step 6: Final answer
    x = 1,870,378.74

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.