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Finding the Third Proportional to 349,716 and 724,306

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Solution

The third proportional to 349,716 and 724,306 is: 1,500,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,716 : 724,306 = 724,306 : x
  2. Step 2: Convert to fraction form
    349,716/724,306 = 724,306/x
  3. Step 3: Cross multiply
    349,716x = 724,306 × 724,306
  4. Step 4: Simplify right side
    349,716x = 524,619,181,636
  5. Step 5: Solve for x
    x = 524,619,181,636/349,716
  6. Step 6: Final answer
    x = 1,500,129.20

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.