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Finding the Third Proportional to 499,772 and 730,920

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Solution

The third proportional to 499,772 and 730,920 is: 1,068,975.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,772 : 730,920 = 730,920 : x
  2. Step 2: Convert to fraction form
    499,772/730,920 = 730,920/x
  3. Step 3: Cross multiply
    499,772x = 730,920 × 730,920
  4. Step 4: Simplify right side
    499,772x = 534,244,046,400
  5. Step 5: Solve for x
    x = 534,244,046,400/499,772
  6. Step 6: Final answer
    x = 1,068,975.55

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.