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Finding the Fourth Proportional to 885,512, 1,328,268 and 294,536

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Solution

The fourth proportional to 885,512, 1,328,268 and 294,536 is: 441,804

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,512 : 1,328,268 = 294,536 : x
  2. Step 2: Convert to fraction form
    885,512/1,328,268 = 294,536/x
  3. Step 3: Cross multiply
    885,512x = 1,328,268 × 294,536
  4. Step 4: Simplify right side
    885,512x = 391,222,743,648
  5. Step 5: Solve for x
    x = 391,222,743,648/885,512
  6. Step 6: Final answer
    x = 441,804

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.