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Finding the Third Proportional to 489,244.50 and 688,963.50

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Solution

The third proportional to 489,244.50 and 688,963.50 is: 970,211.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,244.50 : 688,963.50 = 688,963.50 : x
  2. Step 2: Convert to fraction form
    489,244.50/688,963.50 = 688,963.50/x
  3. Step 3: Cross multiply
    489,244.50x = 688,963.50 × 688,963.50
  4. Step 4: Simplify right side
    489,244.50x = 474,670,704,332.25
  5. Step 5: Solve for x
    x = 474,670,704,332.25/489,244.50
  6. Step 6: Final answer
    x = 970,211.63

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.