Home / 664,461.45-996,837.98-215,105.85

Finding the Fourth Proportional to 664,461.45, 996,837.98 and 215,105.85

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Solution

The fourth proportional to 664,461.45, 996,837.98 and 215,105.85 is: 322,705.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,461.45 : 996,837.98 = 215,105.85 : x
  2. Step 2: Convert to fraction form
    664,461.45/996,837.98 = 215,105.85/x
  3. Step 3: Cross multiply
    664,461.45x = 996,837.98 × 215,105.85
  4. Step 4: Simplify right side
    664,461.45x = 214,425,679,924.65
  5. Step 5: Solve for x
    x = 214,425,679,924.65/664,461.45
  6. Step 6: Final answer
    x = 322,705.97

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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.