Home / 643,914.45-965,560.64-377,761.41

Finding the Fourth Proportional to 643,914.45, 965,560.64 and 377,761.41

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Solution

The fourth proportional to 643,914.45, 965,560.64 and 377,761.41 is: 566,459.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,914.45 : 965,560.64 = 377,761.41 : x
  2. Step 2: Convert to fraction form
    643,914.45/965,560.64 = 377,761.41/x
  3. Step 3: Cross multiply
    643,914.45x = 965,560.64 × 377,761.41
  4. Step 4: Simplify right side
    643,914.45x = 364,751,546,918.10
  5. Step 5: Solve for x
    x = 364,751,546,918.10/643,914.45
  6. Step 6: Final answer
    x = 566,459.64

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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.