Home / 1,115,454.28-1,672,441.74-405,397.96

Finding the Fourth Proportional to 1,115,454.28, 1,672,441.74 and 405,397.96

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Solution

The fourth proportional to 1,115,454.28, 1,672,441.74 and 405,397.96 is: 607,828.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,454.28 : 1,672,441.74 = 405,397.96 : x
  2. Step 2: Convert to fraction form
    1,115,454.28/1,672,441.74 = 405,397.96/x
  3. Step 3: Cross multiply
    1,115,454.28x = 1,672,441.74 × 405,397.96
  4. Step 4: Simplify right side
    1,115,454.28x = 678,004,469,614.85
  5. Step 5: Solve for x
    x = 678,004,469,614.85/1,115,454.28
  6. Step 6: Final answer
    x = 607,828.11

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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.