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Finding the Fourth Proportional to 701,728.14, 968,380.47 and 379,438.86

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Solution

The fourth proportional to 701,728.14, 968,380.47 and 379,438.86 is: 523,623.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,728.14 : 968,380.47 = 379,438.86 : x
  2. Step 2: Convert to fraction form
    701,728.14/968,380.47 = 379,438.86/x
  3. Step 3: Cross multiply
    701,728.14x = 968,380.47 × 379,438.86
  4. Step 4: Simplify right side
    701,728.14x = 367,441,181,583.06
  5. Step 5: Solve for x
    x = 367,441,181,583.06/701,728.14
  6. Step 6: Final answer
    x = 523,623.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.