Home / 712,112.62-1,067,430.78-445,260.34

Finding the Fourth Proportional to 712,112.62, 1,067,430.78 and 445,260.34

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Solution

The fourth proportional to 712,112.62, 1,067,430.78 and 445,260.34 is: 667,428.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,112.62 : 1,067,430.78 = 445,260.34 : x
  2. Step 2: Convert to fraction form
    712,112.62/1,067,430.78 = 445,260.34/x
  3. Step 3: Cross multiply
    712,112.62x = 1,067,430.78 × 445,260.34
  4. Step 4: Simplify right side
    712,112.62x = 475,284,592,029.27
  5. Step 5: Solve for x
    x = 475,284,592,029.27/712,112.62
  6. Step 6: Final answer
    x = 667,428.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.