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Finding the Third Proportional to 470,400 and 716,661

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Solution

The third proportional to 470,400 and 716,661 is: 1,091,843.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,400 : 716,661 = 716,661 : x
  2. Step 2: Convert to fraction form
    470,400/716,661 = 716,661/x
  3. Step 3: Cross multiply
    470,400x = 716,661 × 716,661
  4. Step 4: Simplify right side
    470,400x = 513,602,988,921
  5. Step 5: Solve for x
    x = 513,602,988,921/470,400
  6. Step 6: Final answer
    x = 1,091,843.09

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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.