Home / 781,923.08-1,172,981.21-276,379.80

Finding the Fourth Proportional to 781,923.08, 1,172,981.21 and 276,379.80

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Solution

The fourth proportional to 781,923.08, 1,172,981.21 and 276,379.80 is: 414,603.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,923.08 : 1,172,981.21 = 276,379.80 : x
  2. Step 2: Convert to fraction form
    781,923.08/1,172,981.21 = 276,379.80/x
  3. Step 3: Cross multiply
    781,923.08x = 1,172,981.21 × 276,379.80
  4. Step 4: Simplify right side
    781,923.08x = 324,188,310,841.66
  5. Step 5: Solve for x
    x = 324,188,310,841.66/781,923.08
  6. Step 6: Final answer
    x = 414,603.84

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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.