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Finding the Third Proportional to 784,902.38 and 1,689,603.75

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Solution

The third proportional to 784,902.38 and 1,689,603.75 is: 3,637,090.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,902.38 : 1,689,603.75 = 1,689,603.75 : x
  2. Step 2: Convert to fraction form
    784,902.38/1,689,603.75 = 1,689,603.75/x
  3. Step 3: Cross multiply
    784,902.38x = 1,689,603.75 × 1,689,603.75
  4. Step 4: Simplify right side
    784,902.38x = 2,854,760,832,014.06
  5. Step 5: Solve for x
    x = 2,854,760,832,014.06/784,902.38
  6. Step 6: Final answer
    x = 3,637,090.32

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.