Home / 689,758.80-1,034,336.56-347,991.97

Finding the Fourth Proportional to 689,758.80, 1,034,336.56 and 347,991.97

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Solution

The fourth proportional to 689,758.80, 1,034,336.56 and 347,991.97 is: 521,835.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,758.80 : 1,034,336.56 = 347,991.97 : x
  2. Step 2: Convert to fraction form
    689,758.80/1,034,336.56 = 347,991.97/x
  3. Step 3: Cross multiply
    689,758.80x = 1,034,336.56 × 347,991.97
  4. Step 4: Simplify right side
    689,758.80x = 359,940,810,245.78
  5. Step 5: Solve for x
    x = 359,940,810,245.78/689,758.80
  6. Step 6: Final answer
    x = 521,835.77

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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.