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Finding the Third Proportional to 690,144.75 and 1,053,897.75

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Solution

The third proportional to 690,144.75 and 1,053,897.75 is: 1,609,373.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,144.75 : 1,053,897.75 = 1,053,897.75 : x
  2. Step 2: Convert to fraction form
    690,144.75/1,053,897.75 = 1,053,897.75/x
  3. Step 3: Cross multiply
    690,144.75x = 1,053,897.75 × 1,053,897.75
  4. Step 4: Simplify right side
    690,144.75x = 1,110,700,467,455.06
  5. Step 5: Solve for x
    x = 1,110,700,467,455.06/690,144.75
  6. Step 6: Final answer
    x = 1,609,373.20

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.