Home / 405,983.10-608,099.85-335,999.10

Finding the Fourth Proportional to 405,983.10, 608,099.85 and 335,999.10

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Solution

The fourth proportional to 405,983.10, 608,099.85 and 335,999.10 is: 503,274.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,983.10 : 608,099.85 = 335,999.10 : x
  2. Step 2: Convert to fraction form
    405,983.10/608,099.85 = 335,999.10/x
  3. Step 3: Cross multiply
    405,983.10x = 608,099.85 × 335,999.10
  4. Step 4: Simplify right side
    405,983.10x = 204,321,002,310.14
  5. Step 5: Solve for x
    x = 204,321,002,310.14/405,983.10
  6. Step 6: Final answer
    x = 503,274.65

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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.