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Finding the Fourth Proportional to 479,522.62, 719,050.65 and 279,907.84

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Solution

The fourth proportional to 479,522.62, 719,050.65 and 279,907.84 is: 419,725.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,522.62 : 719,050.65 = 279,907.84 : x
  2. Step 2: Convert to fraction form
    479,522.62/719,050.65 = 279,907.84/x
  3. Step 3: Cross multiply
    479,522.62x = 719,050.65 × 279,907.84
  4. Step 4: Simplify right side
    479,522.62x = 201,267,914,292.10
  5. Step 5: Solve for x
    x = 201,267,914,292.10/479,522.62
  6. Step 6: Final answer
    x = 419,725.59

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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.