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Finding the Third Proportional to 285,675 and 545,430

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Solution

The third proportional to 285,675 and 545,430 is: 1,041,371.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,675 : 545,430 = 545,430 : x
  2. Step 2: Convert to fraction form
    285,675/545,430 = 545,430/x
  3. Step 3: Cross multiply
    285,675x = 545,430 × 545,430
  4. Step 4: Simplify right side
    285,675x = 297,493,884,900
  5. Step 5: Solve for x
    x = 297,493,884,900/285,675
  6. Step 6: Final answer
    x = 1,041,371.79

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.