Home / 719,223.04-1,078,500.84-419,789.80

Finding the Fourth Proportional to 719,223.04, 1,078,500.84 and 419,789.80

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Solution

The fourth proportional to 719,223.04, 1,078,500.84 and 419,789.80 is: 629,489.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,223.04 : 1,078,500.84 = 419,789.80 : x
  2. Step 2: Convert to fraction form
    719,223.04/1,078,500.84 = 419,789.80/x
  3. Step 3: Cross multiply
    719,223.04x = 1,078,500.84 × 419,789.80
  4. Step 4: Simplify right side
    719,223.04x = 452,743,651,923.43
  5. Step 5: Solve for x
    x = 452,743,651,923.43/719,223.04
  6. Step 6: Final answer
    x = 629,489.92

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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.