Home / 821,366.46-1,232,049.69-260,400.96

Finding the Fourth Proportional to 821,366.46, 1,232,049.69 and 260,400.96

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Solution

The fourth proportional to 821,366.46, 1,232,049.69 and 260,400.96 is: 390,601.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,366.46 : 1,232,049.69 = 260,400.96 : x
  2. Step 2: Convert to fraction form
    821,366.46/1,232,049.69 = 260,400.96/x
  3. Step 3: Cross multiply
    821,366.46x = 1,232,049.69 × 260,400.96
  4. Step 4: Simplify right side
    821,366.46x = 320,826,922,043.70
  5. Step 5: Solve for x
    x = 320,826,922,043.70/821,366.46
  6. Step 6: Final answer
    x = 390,601.44

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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.