Home / 1,131,305.80-1,696,920.30-289,865.80

Finding the Fourth Proportional to 1,131,305.80, 1,696,920.30 and 289,865.80

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Solution

The fourth proportional to 1,131,305.80, 1,696,920.30 and 289,865.80 is: 434,788.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,305.80 : 1,696,920.30 = 289,865.80 : x
  2. Step 2: Convert to fraction form
    1,131,305.80/1,696,920.30 = 289,865.80/x
  3. Step 3: Cross multiply
    1,131,305.80x = 1,696,920.30 × 289,865.80
  4. Step 4: Simplify right side
    1,131,305.80x = 491,879,160,295.74
  5. Step 5: Solve for x
    x = 491,879,160,295.74/1,131,305.80
  6. Step 6: Final answer
    x = 434,788.86

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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.