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Finding the Fourth Proportional to 557,080.65, 768,774.44 and 327,647.61

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Solution

The fourth proportional to 557,080.65, 768,774.44 and 327,647.61 is: 452,155.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,080.65 : 768,774.44 = 327,647.61 : x
  2. Step 2: Convert to fraction form
    557,080.65/768,774.44 = 327,647.61/x
  3. Step 3: Cross multiply
    557,080.65x = 768,774.44 × 327,647.61
  4. Step 4: Simplify right side
    557,080.65x = 251,887,107,895.09
  5. Step 5: Solve for x
    x = 251,887,107,895.09/557,080.65
  6. Step 6: Final answer
    x = 452,155.55

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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.