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Finding the Fourth Proportional to 551,268.41, 760,617.34 and 321,694.70

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Solution

The fourth proportional to 551,268.41, 760,617.34 and 321,694.70 is: 443,861.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,268.41 : 760,617.34 = 321,694.70 : x
  2. Step 2: Convert to fraction form
    551,268.41/760,617.34 = 321,694.70/x
  3. Step 3: Cross multiply
    551,268.41x = 760,617.34 × 321,694.70
  4. Step 4: Simplify right side
    551,268.41x = 244,686,562,398.78
  5. Step 5: Solve for x
    x = 244,686,562,398.78/551,268.41
  6. Step 6: Final answer
    x = 443,861.03

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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.