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Finding the Fourth Proportional to 611,234.55, 843,591.40 and 366,228.98

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Solution

The fourth proportional to 611,234.55, 843,591.40 and 366,228.98 is: 505,448.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,234.55 : 843,591.40 = 366,228.98 : x
  2. Step 2: Convert to fraction form
    611,234.55/843,591.40 = 366,228.98/x
  3. Step 3: Cross multiply
    611,234.55x = 843,591.40 × 366,228.98
  4. Step 4: Simplify right side
    611,234.55x = 308,947,615,988.71
  5. Step 5: Solve for x
    x = 308,947,615,988.71/611,234.55
  6. Step 6: Final answer
    x = 505,448.55

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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.