Home / 830,900.80-1,246,351.20-269,935.30

Finding the Fourth Proportional to 830,900.80, 1,246,351.20 and 269,935.30

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Solution

The fourth proportional to 830,900.80, 1,246,351.20 and 269,935.30 is: 404,902.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,900.80 : 1,246,351.20 = 269,935.30 : x
  2. Step 2: Convert to fraction form
    830,900.80/1,246,351.20 = 269,935.30/x
  3. Step 3: Cross multiply
    830,900.80x = 1,246,351.20 × 269,935.30
  4. Step 4: Simplify right side
    830,900.80x = 336,434,185,077.36
  5. Step 5: Solve for x
    x = 336,434,185,077.36/830,900.80
  6. Step 6: Final answer
    x = 404,902.95

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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.