Home / 768,286.94-1,060,236.15-428,747.90

Finding the Fourth Proportional to 768,286.94, 1,060,236.15 and 428,747.90

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Solution

The fourth proportional to 768,286.94, 1,060,236.15 and 428,747.90 is: 591,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,286.94 : 1,060,236.15 = 428,747.90 : x
  2. Step 2: Convert to fraction form
    768,286.94/1,060,236.15 = 428,747.90/x
  3. Step 3: Cross multiply
    768,286.94x = 1,060,236.15 × 428,747.90
  4. Step 4: Simplify right side
    768,286.94x = 454,574,022,816.59
  5. Step 5: Solve for x
    x = 454,574,022,816.59/768,286.94
  6. Step 6: Final answer
    x = 591,672.20

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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.