Home / 511,229.70-766,844.55-322,272.90

Finding the Fourth Proportional to 511,229.70, 766,844.55 and 322,272.90

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Solution

The fourth proportional to 511,229.70, 766,844.55 and 322,272.90 is: 483,409.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,229.70 : 766,844.55 = 322,272.90 : x
  2. Step 2: Convert to fraction form
    511,229.70/766,844.55 = 322,272.90/x
  3. Step 3: Cross multiply
    511,229.70x = 766,844.55 × 322,272.90
  4. Step 4: Simplify right side
    511,229.70x = 247,133,216,977.70
  5. Step 5: Solve for x
    x = 247,133,216,977.70/511,229.70
  6. Step 6: Final answer
    x = 483,409.35

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Similar ratio
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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.