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Finding the Fourth Proportional to 511,617.60, 767,958.68 and 376,833.87

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Solution

The fourth proportional to 511,617.60, 767,958.68 and 376,833.87 is: 565,642.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,617.60 : 767,958.68 = 376,833.87 : x
  2. Step 2: Convert to fraction form
    511,617.60/767,958.68 = 376,833.87/x
  3. Step 3: Cross multiply
    511,617.60x = 767,958.68 × 376,833.87
  4. Step 4: Simplify right side
    511,617.60x = 289,392,842,326.58
  5. Step 5: Solve for x
    x = 289,392,842,326.58/511,617.60
  6. Step 6: Final answer
    x = 565,642.86

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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.