Home / 664,745.94-996,717.96-309,839.58

Finding the Fourth Proportional to 664,745.94, 996,717.96 and 309,839.58

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Solution

The fourth proportional to 664,745.94, 996,717.96 and 309,839.58 is: 464,572.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,745.94 : 996,717.96 = 309,839.58 : x
  2. Step 2: Convert to fraction form
    664,745.94/996,717.96 = 309,839.58/x
  3. Step 3: Cross multiply
    664,745.94x = 996,717.96 × 309,839.58
  4. Step 4: Simplify right side
    664,745.94x = 308,822,674,104.86
  5. Step 5: Solve for x
    x = 308,822,674,104.86/664,745.94
  6. Step 6: Final answer
    x = 464,572.49

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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.