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Finding the Third Proportional to 890,075 and 1,379,091

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Solution

The third proportional to 890,075 and 1,379,091 is: 2,136,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,075 : 1,379,091 = 1,379,091 : x
  2. Step 2: Convert to fraction form
    890,075/1,379,091 = 1,379,091/x
  3. Step 3: Cross multiply
    890,075x = 1,379,091 × 1,379,091
  4. Step 4: Simplify right side
    890,075x = 1,901,891,986,281
  5. Step 5: Solve for x
    x = 1,901,891,986,281/890,075
  6. Step 6: Final answer
    x = 2,136,777.22

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.