Home / 689,138.88-1,032,481.44-588,269.76

Finding the Fourth Proportional to 689,138.88, 1,032,481.44 and 588,269.76

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Solution

The fourth proportional to 689,138.88, 1,032,481.44 and 588,269.76 is: 881,357.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,138.88 : 1,032,481.44 = 588,269.76 : x
  2. Step 2: Convert to fraction form
    689,138.88/1,032,481.44 = 588,269.76/x
  3. Step 3: Cross multiply
    689,138.88x = 1,032,481.44 × 588,269.76
  4. Step 4: Simplify right side
    689,138.88x = 607,377,608,913.25
  5. Step 5: Solve for x
    x = 607,377,608,913.25/689,138.88
  6. Step 6: Final answer
    x = 881,357.34

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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.