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Finding the Fourth Proportional to 664,037.32, 996,053.82 and 397,877.80

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Solution

The fourth proportional to 664,037.32, 996,053.82 and 397,877.80 is: 596,815.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,037.32 : 996,053.82 = 397,877.80 : x
  2. Step 2: Convert to fraction form
    664,037.32/996,053.82 = 397,877.80/x
  3. Step 3: Cross multiply
    664,037.32x = 996,053.82 × 397,877.80
  4. Step 4: Simplify right side
    664,037.32x = 396,307,702,583.20
  5. Step 5: Solve for x
    x = 396,307,702,583.20/664,037.32
  6. Step 6: Final answer
    x = 596,815.41

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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.