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Finding the Third Proportional to 388,791 and 608,580

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Solution

The third proportional to 388,791 and 608,580 is: 952,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,791 : 608,580 = 608,580 : x
  2. Step 2: Convert to fraction form
    388,791/608,580 = 608,580/x
  3. Step 3: Cross multiply
    388,791x = 608,580 × 608,580
  4. Step 4: Simplify right side
    388,791x = 370,369,616,400
  5. Step 5: Solve for x
    x = 370,369,616,400/388,791
  6. Step 6: Final answer
    x = 952,618.80

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.