Home / 825,816.20-1,238,724.30-264,907.40

Finding the Fourth Proportional to 825,816.20, 1,238,724.30 and 264,907.40

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Solution

The fourth proportional to 825,816.20, 1,238,724.30 and 264,907.40 is: 397,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,816.20 : 1,238,724.30 = 264,907.40 : x
  2. Step 2: Convert to fraction form
    825,816.20/1,238,724.30 = 264,907.40/x
  3. Step 3: Cross multiply
    825,816.20x = 1,238,724.30 × 264,907.40
  4. Step 4: Simplify right side
    825,816.20x = 328,147,233,629.82
  5. Step 5: Solve for x
    x = 328,147,233,629.82/825,816.20
  6. Step 6: Final answer
    x = 397,361.10

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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.