Home / 1,123,273.70-1,684,910.55-857,553.20

Finding the Fourth Proportional to 1,123,273.70, 1,684,910.55 and 857,553.20

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Solution

The fourth proportional to 1,123,273.70, 1,684,910.55 and 857,553.20 is: 1,286,329.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,273.70 : 1,684,910.55 = 857,553.20 : x
  2. Step 2: Convert to fraction form
    1,123,273.70/1,684,910.55 = 857,553.20/x
  3. Step 3: Cross multiply
    1,123,273.70x = 1,684,910.55 × 857,553.20
  4. Step 4: Simplify right side
    1,123,273.70x = 1,444,900,433,866.26
  5. Step 5: Solve for x
    x = 1,444,900,433,866.26/1,123,273.70
  6. Step 6: Final answer
    x = 1,286,329.80

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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.