Home / 664,300.64-996,609.15-215,021.60

Finding the Fourth Proportional to 664,300.64, 996,609.15 and 215,021.60

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Solution

The fourth proportional to 664,300.64, 996,609.15 and 215,021.60 is: 322,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,300.64 : 996,609.15 = 215,021.60 : x
  2. Step 2: Convert to fraction form
    664,300.64/996,609.15 = 215,021.60/x
  3. Step 3: Cross multiply
    664,300.64x = 996,609.15 × 215,021.60
  4. Step 4: Simplify right side
    664,300.64x = 214,292,494,007.64
  5. Step 5: Solve for x
    x = 214,292,494,007.64/664,300.64
  6. Step 6: Final answer
    x = 322,583.60

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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.