Home / 842,859.43-1,264,078.70-330,628.68

Finding the Fourth Proportional to 842,859.43, 1,264,078.70 and 330,628.68

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Solution

The fourth proportional to 842,859.43, 1,264,078.70 and 330,628.68 is: 495,860.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,859.43 : 1,264,078.70 = 330,628.68 : x
  2. Step 2: Convert to fraction form
    842,859.43/1,264,078.70 = 330,628.68/x
  3. Step 3: Cross multiply
    842,859.43x = 1,264,078.70 × 330,628.68
  4. Step 4: Simplify right side
    842,859.43x = 417,940,671,997.12
  5. Step 5: Solve for x
    x = 417,940,671,997.12/842,859.43
  6. Step 6: Final answer
    x = 495,860.47

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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.