Home / 768,044.94-1,059,905.07-428,527.50

Finding the Fourth Proportional to 768,044.94, 1,059,905.07 and 428,527.50

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Solution

The fourth proportional to 768,044.94, 1,059,905.07 and 428,527.50 is: 591,369.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,044.94 : 1,059,905.07 = 428,527.50 : x
  2. Step 2: Convert to fraction form
    768,044.94/1,059,905.07 = 428,527.50/x
  3. Step 3: Cross multiply
    768,044.94x = 1,059,905.07 × 428,527.50
  4. Step 4: Simplify right side
    768,044.94x = 454,198,469,884.43
  5. Step 5: Solve for x
    x = 454,198,469,884.43/768,044.94
  6. Step 6: Final answer
    x = 591,369.65

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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.