Home / 500,961.12-691,326.36-274,601.76

Finding the Fourth Proportional to 500,961.12, 691,326.36 and 274,601.76

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Solution

The fourth proportional to 500,961.12, 691,326.36 and 274,601.76 is: 378,950.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,961.12 : 691,326.36 = 274,601.76 : x
  2. Step 2: Convert to fraction form
    500,961.12/691,326.36 = 274,601.76/x
  3. Step 3: Cross multiply
    500,961.12x = 691,326.36 × 274,601.76
  4. Step 4: Simplify right side
    500,961.12x = 189,839,435,190.39
  5. Step 5: Solve for x
    x = 189,839,435,190.39/500,961.12
  6. Step 6: Final answer
    x = 378,950.44

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1.5x scale

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.