Home / 643,016.28-964,193.94-377,300.64

Finding the Fourth Proportional to 643,016.28, 964,193.94 and 377,300.64

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Solution

The fourth proportional to 643,016.28, 964,193.94 and 377,300.64 is: 565,757.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,016.28 : 964,193.94 = 377,300.64 : x
  2. Step 2: Convert to fraction form
    643,016.28/964,193.94 = 377,300.64/x
  3. Step 3: Cross multiply
    643,016.28x = 964,193.94 × 377,300.64
  4. Step 4: Simplify right side
    643,016.28x = 363,790,990,646.12
  5. Step 5: Solve for x
    x = 363,790,990,646.12/643,016.28
  6. Step 6: Final answer
    x = 565,757.05

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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.