Home / 643,515.57-965,467.08-580,037.85

Finding the Fourth Proportional to 643,515.57, 965,467.08 and 580,037.85

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Solution

The fourth proportional to 643,515.57, 965,467.08 and 580,037.85 is: 870,231.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,515.57 : 965,467.08 = 580,037.85 : x
  2. Step 2: Convert to fraction form
    643,515.57/965,467.08 = 580,037.85/x
  3. Step 3: Cross multiply
    643,515.57x = 965,467.08 × 580,037.85
  4. Step 4: Simplify right side
    643,515.57x = 560,007,449,328.98
  5. Step 5: Solve for x
    x = 560,007,449,328.98/643,515.57
  6. Step 6: Final answer
    x = 870,231.39

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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.