Home / 981,709.40-1,472,564.10-804,416.60

Finding the Fourth Proportional to 981,709.40, 1,472,564.10 and 804,416.60

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Solution

The fourth proportional to 981,709.40, 1,472,564.10 and 804,416.60 is: 1,206,624.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,709.40 : 1,472,564.10 = 804,416.60 : x
  2. Step 2: Convert to fraction form
    981,709.40/1,472,564.10 = 804,416.60/x
  3. Step 3: Cross multiply
    981,709.40x = 1,472,564.10 × 804,416.60
  4. Step 4: Simplify right side
    981,709.40x = 1,184,555,006,604.06
  5. Step 5: Solve for x
    x = 1,184,555,006,604.06/981,709.40
  6. Step 6: Final answer
    x = 1,206,624.90

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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.