Home / 1,124,086.20-1,686,217.32-325,379.76

Finding the Fourth Proportional to 1,124,086.20, 1,686,217.32 and 325,379.76

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Solution

The fourth proportional to 1,124,086.20, 1,686,217.32 and 325,379.76 is: 488,095.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,086.20 : 1,686,217.32 = 325,379.76 : x
  2. Step 2: Convert to fraction form
    1,124,086.20/1,686,217.32 = 325,379.76/x
  3. Step 3: Cross multiply
    1,124,086.20x = 1,686,217.32 × 325,379.76
  4. Step 4: Simplify right side
    1,124,086.20x = 548,660,986,889.44
  5. Step 5: Solve for x
    x = 548,660,986,889.44/1,124,086.20
  6. Step 6: Final answer
    x = 488,095.12

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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.