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Finding the Third Proportional to 345,915 and 757,440

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Solution

The third proportional to 345,915 and 757,440 is: 1,658,544.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,915 : 757,440 = 757,440 : x
  2. Step 2: Convert to fraction form
    345,915/757,440 = 757,440/x
  3. Step 3: Cross multiply
    345,915x = 757,440 × 757,440
  4. Step 4: Simplify right side
    345,915x = 573,715,353,600
  5. Step 5: Solve for x
    x = 573,715,353,600/345,915
  6. Step 6: Final answer
    x = 1,658,544.31

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.