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Finding the Third Proportional to 304,790 and 474,636

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Solution

The third proportional to 304,790 and 474,636 is: 739,129.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,790 : 474,636 = 474,636 : x
  2. Step 2: Convert to fraction form
    304,790/474,636 = 474,636/x
  3. Step 3: Cross multiply
    304,790x = 474,636 × 474,636
  4. Step 4: Simplify right side
    304,790x = 225,279,332,496
  5. Step 5: Solve for x
    x = 225,279,332,496/304,790
  6. Step 6: Final answer
    x = 739,129.67

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.