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Finding the Third Proportional to 755,289 and 1,643,386

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Solution

The third proportional to 755,289 and 1,643,386 is: 3,575,740.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,289 : 1,643,386 = 1,643,386 : x
  2. Step 2: Convert to fraction form
    755,289/1,643,386 = 1,643,386/x
  3. Step 3: Cross multiply
    755,289x = 1,643,386 × 1,643,386
  4. Step 4: Simplify right side
    755,289x = 2,700,717,544,996
  5. Step 5: Solve for x
    x = 2,700,717,544,996/755,289
  6. Step 6: Final answer
    x = 3,575,740.60

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.