Home / 826,640.70-1,239,961.05-265,731.90

Finding the Fourth Proportional to 826,640.70, 1,239,961.05 and 265,731.90

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Solution

The fourth proportional to 826,640.70, 1,239,961.05 and 265,731.90 is: 398,597.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,640.70 : 1,239,961.05 = 265,731.90 : x
  2. Step 2: Convert to fraction form
    826,640.70/1,239,961.05 = 265,731.90/x
  3. Step 3: Cross multiply
    826,640.70x = 1,239,961.05 × 265,731.90
  4. Step 4: Simplify right side
    826,640.70x = 329,497,205,742.50
  5. Step 5: Solve for x
    x = 329,497,205,742.50/826,640.70
  6. Step 6: Final answer
    x = 398,597.85

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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.