Home / 773,872.80-1,160,809.20-212,906.40

Finding the Fourth Proportional to 773,872.80, 1,160,809.20 and 212,906.40

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Solution

The fourth proportional to 773,872.80, 1,160,809.20 and 212,906.40 is: 319,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,872.80 : 1,160,809.20 = 212,906.40 : x
  2. Step 2: Convert to fraction form
    773,872.80/1,160,809.20 = 212,906.40/x
  3. Step 3: Cross multiply
    773,872.80x = 1,160,809.20 × 212,906.40
  4. Step 4: Simplify right side
    773,872.80x = 247,143,707,858.88
  5. Step 5: Solve for x
    x = 247,143,707,858.88/773,872.80
  6. Step 6: Final answer
    x = 319,359.60

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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.