Home / 679,739.97-938,019.68-373,815.41

Finding the Fourth Proportional to 679,739.97, 938,019.68 and 373,815.41

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Solution

The fourth proportional to 679,739.97, 938,019.68 and 373,815.41 is: 515,853.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,739.97 : 938,019.68 = 373,815.41 : x
  2. Step 2: Convert to fraction form
    679,739.97/938,019.68 = 373,815.41/x
  3. Step 3: Cross multiply
    679,739.97x = 938,019.68 × 373,815.41
  4. Step 4: Simplify right side
    679,739.97x = 350,646,204,708.09
  5. Step 5: Solve for x
    x = 350,646,204,708.09/679,739.97
  6. Step 6: Final answer
    x = 515,853.44

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1.5x scale

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.