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Finding the Third Proportional to 388,833.75 and 556,034.63

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Solution

The third proportional to 388,833.75 and 556,034.63 is: 795,132.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,833.75 : 556,034.63 = 556,034.63 : x
  2. Step 2: Convert to fraction form
    388,833.75/556,034.63 = 556,034.63/x
  3. Step 3: Cross multiply
    388,833.75x = 556,034.63 × 556,034.63
  4. Step 4: Simplify right side
    388,833.75x = 309,174,504,198.89
  5. Step 5: Solve for x
    x = 309,174,504,198.89/388,833.75
  6. Step 6: Final answer
    x = 795,132.89

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.