Home / 684,970.41-945,245.02-379,046.60

Finding the Fourth Proportional to 684,970.41, 945,245.02 and 379,046.60

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Solution

The fourth proportional to 684,970.41, 945,245.02 and 379,046.60 is: 523,076.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,970.41 : 945,245.02 = 379,046.60 : x
  2. Step 2: Convert to fraction form
    684,970.41/945,245.02 = 379,046.60/x
  3. Step 3: Cross multiply
    684,970.41x = 945,245.02 × 379,046.60
  4. Step 4: Simplify right side
    684,970.41x = 358,291,910,997.93
  5. Step 5: Solve for x
    x = 358,291,910,997.93/684,970.41
  6. Step 6: Final answer
    x = 523,076.48

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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.