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Finding the Fourth Proportional to 531,809.22, 733,906.98 and 290,100.66

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Solution

The fourth proportional to 531,809.22, 733,906.98 and 290,100.66 is: 400,344.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,809.22 : 733,906.98 = 290,100.66 : x
  2. Step 2: Convert to fraction form
    531,809.22/733,906.98 = 290,100.66/x
  3. Step 3: Cross multiply
    531,809.22x = 733,906.98 × 290,100.66
  4. Step 4: Simplify right side
    531,809.22x = 212,906,899,276.61
  5. Step 5: Solve for x
    x = 212,906,899,276.61/531,809.22
  6. Step 6: Final answer
    x = 400,344.51

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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.