Home / 664,495.70-996,889.35-215,140.10

Finding the Fourth Proportional to 664,495.70, 996,889.35 and 215,140.10

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Solution

The fourth proportional to 664,495.70, 996,889.35 and 215,140.10 is: 322,757.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,495.70 : 996,889.35 = 215,140.10 : x
  2. Step 2: Convert to fraction form
    664,495.70/996,889.35 = 215,140.10/x
  3. Step 3: Cross multiply
    664,495.70x = 996,889.35 × 215,140.10
  4. Step 4: Simplify right side
    664,495.70x = 214,470,874,447.94
  5. Step 5: Solve for x
    x = 214,470,874,447.94/664,495.70
  6. Step 6: Final answer
    x = 322,757.35

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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.