Home / 980,745.04-1,471,115.40-261,086.91

Finding the Fourth Proportional to 980,745.04, 1,471,115.40 and 261,086.91

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Solution

The fourth proportional to 980,745.04, 1,471,115.40 and 261,086.91 is: 391,629.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,745.04 : 1,471,115.40 = 261,086.91 : x
  2. Step 2: Convert to fraction form
    980,745.04/1,471,115.40 = 261,086.91/x
  3. Step 3: Cross multiply
    980,745.04x = 1,471,115.40 × 261,086.91
  4. Step 4: Simplify right side
    980,745.04x = 384,088,974,039.41
  5. Step 5: Solve for x
    x = 384,088,974,039.41/980,745.04
  6. Step 6: Final answer
    x = 391,629.79

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1.5x scale

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.