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Finding the Third Proportional to 419,280 and 904,980

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Solution

The third proportional to 419,280 and 904,980 is: 1,953,321.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,280 : 904,980 = 904,980 : x
  2. Step 2: Convert to fraction form
    419,280/904,980 = 904,980/x
  3. Step 3: Cross multiply
    419,280x = 904,980 × 904,980
  4. Step 4: Simplify right side
    419,280x = 818,988,800,400
  5. Step 5: Solve for x
    x = 818,988,800,400/419,280
  6. Step 6: Final answer
    x = 1,953,321.89

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.