Home / 321,949.70-483,313.35-319,616.90

Finding the Fourth Proportional to 321,949.70, 483,313.35 and 319,616.90

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Solution

The fourth proportional to 321,949.70, 483,313.35 and 319,616.90 is: 479,811.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,949.70 : 483,313.35 = 319,616.90 : x
  2. Step 2: Convert to fraction form
    321,949.70/483,313.35 = 319,616.90/x
  3. Step 3: Cross multiply
    321,949.70x = 483,313.35 × 319,616.90
  4. Step 4: Simplify right side
    321,949.70x = 154,475,114,655.62
  5. Step 5: Solve for x
    x = 154,475,114,655.62/321,949.70
  6. Step 6: Final answer
    x = 479,811.33

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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.