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Finding the Third Proportional to 313,426 and 470,836

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Solution

The third proportional to 313,426 and 470,836 is: 707,301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,426 : 470,836 = 470,836 : x
  2. Step 2: Convert to fraction form
    313,426/470,836 = 470,836/x
  3. Step 3: Cross multiply
    313,426x = 470,836 × 470,836
  4. Step 4: Simplify right side
    313,426x = 221,686,538,896
  5. Step 5: Solve for x
    x = 221,686,538,896/313,426
  6. Step 6: Final answer
    x = 707,301.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.