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Finding the Fourth Proportional to 567,277.88, 782,843.64 and 309,154.94

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Solution

The fourth proportional to 567,277.88, 782,843.64 and 309,154.94 is: 426,633.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,277.88 : 782,843.64 = 309,154.94 : x
  2. Step 2: Convert to fraction form
    567,277.88/782,843.64 = 309,154.94/x
  3. Step 3: Cross multiply
    567,277.88x = 782,843.64 × 309,154.94
  4. Step 4: Simplify right side
    567,277.88x = 242,019,978,553.58
  5. Step 5: Solve for x
    x = 242,019,978,553.58/567,277.88
  6. Step 6: Final answer
    x = 426,633.91

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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.