Home / 768,034.44-1,059,890.58-428,517

Finding the Fourth Proportional to 768,034.44, 1,059,890.58 and 428,517

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Solution

The fourth proportional to 768,034.44, 1,059,890.58 and 428,517 is: 591,355.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,034.44 : 1,059,890.58 = 428,517 : x
  2. Step 2: Convert to fraction form
    768,034.44/1,059,890.58 = 428,517/x
  3. Step 3: Cross multiply
    768,034.44x = 1,059,890.58 × 428,517
  4. Step 4: Simplify right side
    768,034.44x = 454,181,131,669.86
  5. Step 5: Solve for x
    x = 454,181,131,669.86/768,034.44
  6. Step 6: Final answer
    x = 591,355.16

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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.