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Finding the Fourth Proportional to 558,806, 837,625.50 and 259,039.40

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Solution

The fourth proportional to 558,806, 837,625.50 and 259,039.40 is: 388,288.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,806 : 837,625.50 = 259,039.40 : x
  2. Step 2: Convert to fraction form
    558,806/837,625.50 = 259,039.40/x
  3. Step 3: Cross multiply
    558,806x = 837,625.50 × 259,039.40
  4. Step 4: Simplify right side
    558,806x = 216,978,006,944.70
  5. Step 5: Solve for x
    x = 216,978,006,944.70/558,806
  6. Step 6: Final answer
    x = 388,288.61

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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.