Home / 941,410.80-1,299,148.56-511,689.78

Finding the Fourth Proportional to 941,410.80, 1,299,148.56 and 511,689.78

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Solution

The fourth proportional to 941,410.80, 1,299,148.56 and 511,689.78 is: 706,132.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,410.80 : 1,299,148.56 = 511,689.78 : x
  2. Step 2: Convert to fraction form
    941,410.80/1,299,148.56 = 511,689.78/x
  3. Step 3: Cross multiply
    941,410.80x = 1,299,148.56 × 511,689.78
  4. Step 4: Simplify right side
    941,410.80x = 664,761,040,853.72
  5. Step 5: Solve for x
    x = 664,761,040,853.72/941,410.80
  6. Step 6: Final answer
    x = 706,132.80

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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.