Home / 641,991.47-963,174.69-286,922.43

Finding the Fourth Proportional to 641,991.47, 963,174.69 and 286,922.43

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Solution

The fourth proportional to 641,991.47, 963,174.69 and 286,922.43 is: 430,467.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,991.47 : 963,174.69 = 286,922.43 : x
  2. Step 2: Convert to fraction form
    641,991.47/963,174.69 = 286,922.43/x
  3. Step 3: Cross multiply
    641,991.47x = 963,174.69 × 286,922.43
  4. Step 4: Simplify right side
    641,991.47x = 276,356,422,569.30
  5. Step 5: Solve for x
    x = 276,356,422,569.30/641,991.47
  6. Step 6: Final answer
    x = 430,467.44

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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.