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Finding the Third Proportional to 388,033.88 and 579,661.13

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Solution

The third proportional to 388,033.88 and 579,661.13 is: 865,921.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,033.88 : 579,661.13 = 579,661.13 : x
  2. Step 2: Convert to fraction form
    388,033.88/579,661.13 = 579,661.13/x
  3. Step 3: Cross multiply
    388,033.88x = 579,661.13 × 579,661.13
  4. Step 4: Simplify right side
    388,033.88x = 336,007,019,836.27
  5. Step 5: Solve for x
    x = 336,007,019,836.27/388,033.88
  6. Step 6: Final answer
    x = 865,921.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.