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Finding the Fourth Proportional to 557,329.15, 769,179.89 and 330,974.65

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Solution

The fourth proportional to 557,329.15, 769,179.89 and 330,974.65 is: 456,784.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,329.15 : 769,179.89 = 330,974.65 : x
  2. Step 2: Convert to fraction form
    557,329.15/769,179.89 = 330,974.65/x
  3. Step 3: Cross multiply
    557,329.15x = 769,179.89 × 330,974.65
  4. Step 4: Simplify right side
    557,329.15x = 254,579,043,224.92
  5. Step 5: Solve for x
    x = 254,579,043,224.92/557,329.15
  6. Step 6: Final answer
    x = 456,784.01

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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.