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Finding the Third Proportional to 426,358.69 and 622,905.19

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Solution

The third proportional to 426,358.69 and 622,905.19 is: 910,057.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,358.69 : 622,905.19 = 622,905.19 : x
  2. Step 2: Convert to fraction form
    426,358.69/622,905.19 = 622,905.19/x
  3. Step 3: Cross multiply
    426,358.69x = 622,905.19 × 622,905.19
  4. Step 4: Simplify right side
    426,358.69x = 388,010,872,614.41
  5. Step 5: Solve for x
    x = 388,010,872,614.41/426,358.69
  6. Step 6: Final answer
    x = 910,057.39

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.