Home / 850,512.30-1,275,768.45-289,546.80

Finding the Fourth Proportional to 850,512.30, 1,275,768.45 and 289,546.80

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Solution

The fourth proportional to 850,512.30, 1,275,768.45 and 289,546.80 is: 434,320.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,512.30 : 1,275,768.45 = 289,546.80 : x
  2. Step 2: Convert to fraction form
    850,512.30/1,275,768.45 = 289,546.80/x
  3. Step 3: Cross multiply
    850,512.30x = 1,275,768.45 × 289,546.80
  4. Step 4: Simplify right side
    850,512.30x = 369,394,672,238.46
  5. Step 5: Solve for x
    x = 369,394,672,238.46/850,512.30
  6. Step 6: Final answer
    x = 434,320.20

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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.