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Finding the Fourth Proportional to 611,151.46, 843,377.00 and 339,222.61

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Solution

The fourth proportional to 611,151.46, 843,377.00 and 339,222.61 is: 468,120.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,151.46 : 843,377.00 = 339,222.61 : x
  2. Step 2: Convert to fraction form
    611,151.46/843,377.00 = 339,222.61/x
  3. Step 3: Cross multiply
    611,151.46x = 843,377.00 × 339,222.61
  4. Step 4: Simplify right side
    611,151.46x = 286,092,546,512.08
  5. Step 5: Solve for x
    x = 286,092,546,512.08/611,151.46
  6. Step 6: Final answer
    x = 468,120.53

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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.