Home / 511,392.03-767,087.97-485,821.23

Finding the Fourth Proportional to 511,392.03, 767,087.97 and 485,821.23

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Solution

The fourth proportional to 511,392.03, 767,087.97 and 485,821.23 is: 728,731.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,392.03 : 767,087.97 = 485,821.23 : x
  2. Step 2: Convert to fraction form
    511,392.03/767,087.97 = 485,821.23/x
  3. Step 3: Cross multiply
    511,392.03x = 767,087.97 × 485,821.23
  4. Step 4: Simplify right side
    511,392.03x = 372,667,619,137.94
  5. Step 5: Solve for x
    x = 372,667,619,137.94/511,392.03
  6. Step 6: Final answer
    x = 728,731.77

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1.5x scale

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.