Home / 941,619.72-1,299,419.91-511,910.58

Finding the Fourth Proportional to 941,619.72, 1,299,419.91 and 511,910.58

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Solution

The fourth proportional to 941,619.72, 1,299,419.91 and 511,910.58 is: 706,428.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,619.72 : 1,299,419.91 = 511,910.58 : x
  2. Step 2: Convert to fraction form
    941,619.72/1,299,419.91 = 511,910.58/x
  3. Step 3: Cross multiply
    941,619.72x = 1,299,419.91 × 511,910.58
  4. Step 4: Simplify right side
    941,619.72x = 665,186,799,791.65
  5. Step 5: Solve for x
    x = 665,186,799,791.65/941,619.72
  6. Step 6: Final answer
    x = 706,428.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.