Home / 1,390,917.18-2,086,375.80-759,486.54

Finding the Fourth Proportional to 1,390,917.18, 2,086,375.80 and 759,486.54

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Solution

The fourth proportional to 1,390,917.18, 2,086,375.80 and 759,486.54 is: 1,139,229.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,917.18 : 2,086,375.80 = 759,486.54 : x
  2. Step 2: Convert to fraction form
    1,390,917.18/2,086,375.80 = 759,486.54/x
  3. Step 3: Cross multiply
    1,390,917.18x = 2,086,375.80 × 759,486.54
  4. Step 4: Simplify right side
    1,390,917.18x = 1,584,574,337,481.73
  5. Step 5: Solve for x
    x = 1,584,574,337,481.73/1,390,917.18
  6. Step 6: Final answer
    x = 1,139,229.83

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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.