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Finding the Third Proportional to 690,355 and 1,476,655

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Solution

The third proportional to 690,355 and 1,476,655 is: 3,158,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,355 : 1,476,655 = 1,476,655 : x
  2. Step 2: Convert to fraction form
    690,355/1,476,655 = 1,476,655/x
  3. Step 3: Cross multiply
    690,355x = 1,476,655 × 1,476,655
  4. Step 4: Simplify right side
    690,355x = 2,180,509,989,025
  5. Step 5: Solve for x
    x = 2,180,509,989,025/690,355
  6. Step 6: Final answer
    x = 3,158,534.36

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.