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Finding the Fourth Proportional to 531,221.44, 733,067.04 and 289,499.12

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Solution

The fourth proportional to 531,221.44, 733,067.04 and 289,499.12 is: 399,498.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,221.44 : 733,067.04 = 289,499.12 : x
  2. Step 2: Convert to fraction form
    531,221.44/733,067.04 = 289,499.12/x
  3. Step 3: Cross multiply
    531,221.44x = 733,067.04 × 289,499.12
  4. Step 4: Simplify right side
    531,221.44x = 212,222,262,981.01
  5. Step 5: Solve for x
    x = 212,222,262,981.01/531,221.44
  6. Step 6: Final answer
    x = 399,498.68

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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.