Home / 809,761.74-1,214,639.14-329,882.51

Finding the Fourth Proportional to 809,761.74, 1,214,639.14 and 329,882.51

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Solution

The fourth proportional to 809,761.74, 1,214,639.14 and 329,882.51 is: 494,822.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,761.74 : 1,214,639.14 = 329,882.51 : x
  2. Step 2: Convert to fraction form
    809,761.74/1,214,639.14 = 329,882.51/x
  3. Step 3: Cross multiply
    809,761.74x = 1,214,639.14 × 329,882.51
  4. Step 4: Simplify right side
    809,761.74x = 400,688,208,247.44
  5. Step 5: Solve for x
    x = 400,688,208,247.44/809,761.74
  6. Step 6: Final answer
    x = 494,822.35

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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.