Home / 643,591.46-965,543.26-194,285.48

Finding the Fourth Proportional to 643,591.46, 965,543.26 and 194,285.48

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Solution

The fourth proportional to 643,591.46, 965,543.26 and 194,285.48 is: 291,475.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,591.46 : 965,543.26 = 194,285.48 : x
  2. Step 2: Convert to fraction form
    643,591.46/965,543.26 = 194,285.48/x
  3. Step 3: Cross multiply
    643,591.46x = 965,543.26 × 194,285.48
  4. Step 4: Simplify right side
    643,591.46x = 187,591,035,729.87
  5. Step 5: Solve for x
    x = 187,591,035,729.87/643,591.46
  6. Step 6: Final answer
    x = 291,475.33

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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.