Home / 893,629.64-1,339,691.56-387,809.75

Finding the Fourth Proportional to 893,629.64, 1,339,691.56 and 387,809.75

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Solution

The fourth proportional to 893,629.64, 1,339,691.56 and 387,809.75 is: 581,387.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,629.64 : 1,339,691.56 = 387,809.75 : x
  2. Step 2: Convert to fraction form
    893,629.64/1,339,691.56 = 387,809.75/x
  3. Step 3: Cross multiply
    893,629.64x = 1,339,691.56 × 387,809.75
  4. Step 4: Simplify right side
    893,629.64x = 519,545,441,292.73
  5. Step 5: Solve for x
    x = 519,545,441,292.73/893,629.64
  6. Step 6: Final answer
    x = 581,387.88

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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.