Home / 1,112,778.76-1,669,149.78-354,609.76

Finding the Fourth Proportional to 1,112,778.76, 1,669,149.78 and 354,609.76

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Solution

The fourth proportional to 1,112,778.76, 1,669,149.78 and 354,609.76 is: 531,908.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,778.76 : 1,669,149.78 = 354,609.76 : x
  2. Step 2: Convert to fraction form
    1,112,778.76/1,669,149.78 = 354,609.76/x
  3. Step 3: Cross multiply
    1,112,778.76x = 1,669,149.78 × 354,609.76
  4. Step 4: Simplify right side
    1,112,778.76x = 591,896,802,889.85
  5. Step 5: Solve for x
    x = 591,896,802,889.85/1,112,778.76
  6. Step 6: Final answer
    x = 531,908.79

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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.