Home / 664,421.31-996,777.30-215,187.57

Finding the Fourth Proportional to 664,421.31, 996,777.30 and 215,187.57

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Solution

The fourth proportional to 664,421.31, 996,777.30 and 215,187.57 is: 322,828.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,421.31 : 996,777.30 = 215,187.57 : x
  2. Step 2: Convert to fraction form
    664,421.31/996,777.30 = 215,187.57/x
  3. Step 3: Cross multiply
    664,421.31x = 996,777.30 × 215,187.57
  4. Step 4: Simplify right side
    664,421.31x = 214,494,085,018.16
  5. Step 5: Solve for x
    x = 214,494,085,018.16/664,421.31
  6. Step 6: Final answer
    x = 322,828.42

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1.5x scale

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.