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Finding the Third Proportional to 388,570.50 and 915,958.13

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Solution

The third proportional to 388,570.50 and 915,958.13 is: 2,159,143.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,570.50 : 915,958.13 = 915,958.13 : x
  2. Step 2: Convert to fraction form
    388,570.50/915,958.13 = 915,958.13/x
  3. Step 3: Cross multiply
    388,570.50x = 915,958.13 × 915,958.13
  4. Step 4: Simplify right side
    388,570.50x = 838,979,286,753.52
  5. Step 5: Solve for x
    x = 838,979,286,753.52/388,570.50
  6. Step 6: Final answer
    x = 2,159,143.03

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.