Home / 781,629.12-1,172,232.75-276,123.54

Finding the Fourth Proportional to 781,629.12, 1,172,232.75 and 276,123.54

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Solution

The fourth proportional to 781,629.12, 1,172,232.75 and 276,123.54 is: 414,110.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,629.12 : 1,172,232.75 = 276,123.54 : x
  2. Step 2: Convert to fraction form
    781,629.12/1,172,232.75 = 276,123.54/x
  3. Step 3: Cross multiply
    781,629.12x = 1,172,232.75 × 276,123.54
  4. Step 4: Simplify right side
    781,629.12x = 323,681,056,633.94
  5. Step 5: Solve for x
    x = 323,681,056,633.94/781,629.12
  6. Step 6: Final answer
    x = 414,110.80

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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.