Home / 681,105.70-1,021,658.55-629,929.90

Finding the Fourth Proportional to 681,105.70, 1,021,658.55 and 629,929.90

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Solution

The fourth proportional to 681,105.70, 1,021,658.55 and 629,929.90 is: 944,894.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,105.70 : 1,021,658.55 = 629,929.90 : x
  2. Step 2: Convert to fraction form
    681,105.70/1,021,658.55 = 629,929.90/x
  3. Step 3: Cross multiply
    681,105.70x = 1,021,658.55 × 629,929.90
  4. Step 4: Simplify right side
    681,105.70x = 643,573,268,235.65
  5. Step 5: Solve for x
    x = 643,573,268,235.65/681,105.70
  6. Step 6: Final answer
    x = 944,894.85

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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.