Home / 789,820.88-1,089,509.94-484,045.47

Finding the Fourth Proportional to 789,820.88, 1,089,509.94 and 484,045.47

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Solution

The fourth proportional to 789,820.88, 1,089,509.94 and 484,045.47 is: 667,711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,820.88 : 1,089,509.94 = 484,045.47 : x
  2. Step 2: Convert to fraction form
    789,820.88/1,089,509.94 = 484,045.47/x
  3. Step 3: Cross multiply
    789,820.88x = 1,089,509.94 × 484,045.47
  4. Step 4: Simplify right side
    789,820.88x = 527,372,350,976.97
  5. Step 5: Solve for x
    x = 527,372,350,976.97/789,820.88
  6. Step 6: Final answer
    x = 667,711.34

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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.