Home / 1,123,657.38-1,550,267.37-639,879.48

Finding the Fourth Proportional to 1,123,657.38, 1,550,267.37 and 639,879.48

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Solution

The fourth proportional to 1,123,657.38, 1,550,267.37 and 639,879.48 is: 882,817.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,657.38 : 1,550,267.37 = 639,879.48 : x
  2. Step 2: Convert to fraction form
    1,123,657.38/1,550,267.37 = 639,879.48/x
  3. Step 3: Cross multiply
    1,123,657.38x = 1,550,267.37 × 639,879.48
  4. Step 4: Simplify right side
    1,123,657.38x = 991,984,278,576.57
  5. Step 5: Solve for x
    x = 991,984,278,576.57/1,123,657.38
  6. Step 6: Final answer
    x = 882,817.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.