Home / 652,422.09-978,722.07-378,996.75

Finding the Fourth Proportional to 652,422.09, 978,722.07 and 378,996.75

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Solution

The fourth proportional to 652,422.09, 978,722.07 and 378,996.75 is: 568,546.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,422.09 : 978,722.07 = 378,996.75 : x
  2. Step 2: Convert to fraction form
    652,422.09/978,722.07 = 378,996.75/x
  3. Step 3: Cross multiply
    652,422.09x = 978,722.07 × 378,996.75
  4. Step 4: Simplify right side
    652,422.09x = 370,932,483,683.27
  5. Step 5: Solve for x
    x = 370,932,483,683.27/652,422.09
  6. Step 6: Final answer
    x = 568,546.79

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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.