Home / 905,441.70-1,357,318.32-305,983.65

Finding the Fourth Proportional to 905,441.70, 1,357,318.32 and 305,983.65

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Solution

The fourth proportional to 905,441.70, 1,357,318.32 and 305,983.65 is: 458,690.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,441.70 : 1,357,318.32 = 305,983.65 : x
  2. Step 2: Convert to fraction form
    905,441.70/1,357,318.32 = 305,983.65/x
  3. Step 3: Cross multiply
    905,441.70x = 1,357,318.32 × 305,983.65
  4. Step 4: Simplify right side
    905,441.70x = 415,317,206,978.88
  5. Step 5: Solve for x
    x = 415,317,206,978.88/905,441.70
  6. Step 6: Final answer
    x = 458,690.17

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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.