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Finding the Third Proportional to 841,145 and 1,321,981.75

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Solution

The third proportional to 841,145 and 1,321,981.75 is: 2,077,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,145 : 1,321,981.75 = 1,321,981.75 : x
  2. Step 2: Convert to fraction form
    841,145/1,321,981.75 = 1,321,981.75/x
  3. Step 3: Cross multiply
    841,145x = 1,321,981.75 × 1,321,981.75
  4. Step 4: Simplify right side
    841,145x = 1,747,635,747,333.06
  5. Step 5: Solve for x
    x = 1,747,635,747,333.06/841,145
  6. Step 6: Final answer
    x = 2,077,686.66

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.