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Finding the Fourth Proportional to 552,871.64, 763,198.29 and 371,688.66

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Solution

The fourth proportional to 552,871.64, 763,198.29 and 371,688.66 is: 513,088.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,871.64 : 763,198.29 = 371,688.66 : x
  2. Step 2: Convert to fraction form
    552,871.64/763,198.29 = 371,688.66/x
  3. Step 3: Cross multiply
    552,871.64x = 763,198.29 × 371,688.66
  4. Step 4: Simplify right side
    552,871.64x = 283,672,149,724.39
  5. Step 5: Solve for x
    x = 283,672,149,724.39/552,871.64
  6. Step 6: Final answer
    x = 513,088.63

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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.