Home / 781,922.57-1,172,980.46-276,379.30

Finding the Fourth Proportional to 781,922.57, 1,172,980.46 and 276,379.30

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Solution

The fourth proportional to 781,922.57, 1,172,980.46 and 276,379.30 is: 414,603.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,922.57 : 1,172,980.46 = 276,379.30 : x
  2. Step 2: Convert to fraction form
    781,922.57/1,172,980.46 = 276,379.30/x
  3. Step 3: Cross multiply
    781,922.57x = 1,172,980.46 × 276,379.30
  4. Step 4: Simplify right side
    781,922.57x = 324,187,514,134.13
  5. Step 5: Solve for x
    x = 324,187,514,134.13/781,922.57
  6. Step 6: Final answer
    x = 414,603.09

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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.