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Finding the Fourth Proportional to 322,468.88, 482,486.52 and 289,728.08

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Solution

The fourth proportional to 322,468.88, 482,486.52 and 289,728.08 is: 433,498.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,468.88 : 482,486.52 = 289,728.08 : x
  2. Step 2: Convert to fraction form
    322,468.88/482,486.52 = 289,728.08/x
  3. Step 3: Cross multiply
    322,468.88x = 482,486.52 × 289,728.08
  4. Step 4: Simplify right side
    322,468.88x = 139,789,893,065.48
  5. Step 5: Solve for x
    x = 139,789,893,065.48/322,468.88
  6. Step 6: Final answer
    x = 433,498.86

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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.