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Finding the Third Proportional to 285,934.50 and 618,942

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Solution

The third proportional to 285,934.50 and 618,942 is: 1,339,779.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,934.50 : 618,942 = 618,942 : x
  2. Step 2: Convert to fraction form
    285,934.50/618,942 = 618,942/x
  3. Step 3: Cross multiply
    285,934.50x = 618,942 × 618,942
  4. Step 4: Simplify right side
    285,934.50x = 383,089,199,364
  5. Step 5: Solve for x
    x = 383,089,199,364/285,934.50
  6. Step 6: Final answer
    x = 1,339,779.56

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.