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Finding the Fourth Proportional to 689,198.22, 950,954.17 and 402,662.95

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Solution

The fourth proportional to 689,198.22, 950,954.17 and 402,662.95 is: 555,593.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,198.22 : 950,954.17 = 402,662.95 : x
  2. Step 2: Convert to fraction form
    689,198.22/950,954.17 = 402,662.95/x
  3. Step 3: Cross multiply
    689,198.22x = 950,954.17 × 402,662.95
  4. Step 4: Simplify right side
    689,198.22x = 382,914,011,407.00
  5. Step 5: Solve for x
    x = 382,914,011,407.00/689,198.22
  6. Step 6: Final answer
    x = 555,593.44

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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.