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Finding the Third Proportional to 285,043 and 619,370

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Solution

The third proportional to 285,043 and 619,370 is: 1,345,829.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,043 : 619,370 = 619,370 : x
  2. Step 2: Convert to fraction form
    285,043/619,370 = 619,370/x
  3. Step 3: Cross multiply
    285,043x = 619,370 × 619,370
  4. Step 4: Simplify right side
    285,043x = 383,619,196,900
  5. Step 5: Solve for x
    x = 383,619,196,900/285,043
  6. Step 6: Final answer
    x = 1,345,829.21

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.