Home / 840,404.88-1,260,618.24-279,439.36

Finding the Fourth Proportional to 840,404.88, 1,260,618.24 and 279,439.36

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Solution

The fourth proportional to 840,404.88, 1,260,618.24 and 279,439.36 is: 419,162.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,404.88 : 1,260,618.24 = 279,439.36 : x
  2. Step 2: Convert to fraction form
    840,404.88/1,260,618.24 = 279,439.36/x
  3. Step 3: Cross multiply
    840,404.88x = 1,260,618.24 × 279,439.36
  4. Step 4: Simplify right side
    840,404.88x = 352,266,354,189.93
  5. Step 5: Solve for x
    x = 352,266,354,189.93/840,404.88
  6. Step 6: Final answer
    x = 419,162.67

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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.