Home / 830,910.80-1,246,366.20-269,945.30

Finding the Fourth Proportional to 830,910.80, 1,246,366.20 and 269,945.30

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Solution

The fourth proportional to 830,910.80, 1,246,366.20 and 269,945.30 is: 404,917.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,910.80 : 1,246,366.20 = 269,945.30 : x
  2. Step 2: Convert to fraction form
    830,910.80/1,246,366.20 = 269,945.30/x
  3. Step 3: Cross multiply
    830,910.80x = 1,246,366.20 × 269,945.30
  4. Step 4: Simplify right side
    830,910.80x = 336,450,697,768.86
  5. Step 5: Solve for x
    x = 336,450,697,768.86/830,910.80
  6. Step 6: Final answer
    x = 404,917.95

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Double scale
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Similar ratio
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1.5x scale

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.