Home / 891,311.68-1,336,824.24-260,077.60

Finding the Fourth Proportional to 891,311.68, 1,336,824.24 and 260,077.60

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Solution

The fourth proportional to 891,311.68, 1,336,824.24 and 260,077.60 is: 390,074.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,311.68 : 1,336,824.24 = 260,077.60 : x
  2. Step 2: Convert to fraction form
    891,311.68/1,336,824.24 = 260,077.60/x
  3. Step 3: Cross multiply
    891,311.68x = 1,336,824.24 × 260,077.60
  4. Step 4: Simplify right side
    891,311.68x = 347,678,039,961.02
  5. Step 5: Solve for x
    x = 347,678,039,961.02/891,311.68
  6. Step 6: Final answer
    x = 390,074.59

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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.