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Finding the Fourth Proportional to 388,049.70, 582,074.55 and 341,393.70

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Solution

The fourth proportional to 388,049.70, 582,074.55 and 341,393.70 is: 512,090.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,049.70 : 582,074.55 = 341,393.70 : x
  2. Step 2: Convert to fraction form
    388,049.70/582,074.55 = 341,393.70/x
  3. Step 3: Cross multiply
    388,049.70x = 582,074.55 × 341,393.70
  4. Step 4: Simplify right side
    388,049.70x = 198,716,584,300.34
  5. Step 5: Solve for x
    x = 198,716,584,300.34/388,049.70
  6. Step 6: Final answer
    x = 512,090.55

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Similar ratio
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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.