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Finding the Third Proportional to 715,312 and 1,489,392

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Solution

The third proportional to 715,312 and 1,489,392 is: 3,101,148.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,312 : 1,489,392 = 1,489,392 : x
  2. Step 2: Convert to fraction form
    715,312/1,489,392 = 1,489,392/x
  3. Step 3: Cross multiply
    715,312x = 1,489,392 × 1,489,392
  4. Step 4: Simplify right side
    715,312x = 2,218,288,529,664
  5. Step 5: Solve for x
    x = 2,218,288,529,664/715,312
  6. Step 6: Final answer
    x = 3,101,148.21

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.