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Finding the Fourth Proportional to 578,277.82, 866,620.94 and 492,444.56

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Solution

The fourth proportional to 578,277.82, 866,620.94 and 492,444.56 is: 737,989.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,277.82 : 866,620.94 = 492,444.56 : x
  2. Step 2: Convert to fraction form
    578,277.82/866,620.94 = 492,444.56/x
  3. Step 3: Cross multiply
    578,277.82x = 866,620.94 × 492,444.56
  4. Step 4: Simplify right side
    578,277.82x = 426,762,770,882.75
  5. Step 5: Solve for x
    x = 426,762,770,882.75/578,277.82
  6. Step 6: Final answer
    x = 737,989.18

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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.