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Finding the Third Proportional to 620,912 and 1,358,058

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Solution

The third proportional to 620,912 and 1,358,058 is: 2,970,342.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,912 : 1,358,058 = 1,358,058 : x
  2. Step 2: Convert to fraction form
    620,912/1,358,058 = 1,358,058/x
  3. Step 3: Cross multiply
    620,912x = 1,358,058 × 1,358,058
  4. Step 4: Simplify right side
    620,912x = 1,844,321,531,364
  5. Step 5: Solve for x
    x = 1,844,321,531,364/620,912
  6. Step 6: Final answer
    x = 2,970,342.87

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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.