Home / 825,815.70-1,238,723.55-264,906.90

Finding the Fourth Proportional to 825,815.70, 1,238,723.55 and 264,906.90

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Solution

The fourth proportional to 825,815.70, 1,238,723.55 and 264,906.90 is: 397,360.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,815.70 : 1,238,723.55 = 264,906.90 : x
  2. Step 2: Convert to fraction form
    825,815.70/1,238,723.55 = 264,906.90/x
  3. Step 3: Cross multiply
    825,815.70x = 1,238,723.55 × 264,906.90
  4. Step 4: Simplify right side
    825,815.70x = 328,146,415,587.50
  5. Step 5: Solve for x
    x = 328,146,415,587.50/825,815.70
  6. Step 6: Final answer
    x = 397,360.35

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Half scale
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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.