Home / 809,470.86-1,214,264.97-310,834.86

Finding the Fourth Proportional to 809,470.86, 1,214,264.97 and 310,834.86

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Solution

The fourth proportional to 809,470.86, 1,214,264.97 and 310,834.86 is: 466,274.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,470.86 : 1,214,264.97 = 310,834.86 : x
  2. Step 2: Convert to fraction form
    809,470.86/1,214,264.97 = 310,834.86/x
  3. Step 3: Cross multiply
    809,470.86x = 1,214,264.97 × 310,834.86
  4. Step 4: Simplify right side
    809,470.86x = 377,435,881,952.85
  5. Step 5: Solve for x
    x = 377,435,881,952.85/809,470.86
  6. Step 6: Final answer
    x = 466,274.82

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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.