Home / 789,484.88-1,089,422.91-467,138.49

Finding the Fourth Proportional to 789,484.88, 1,089,422.91 and 467,138.49

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Solution

The fourth proportional to 789,484.88, 1,089,422.91 and 467,138.49 is: 644,611.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,484.88 : 1,089,422.91 = 467,138.49 : x
  2. Step 2: Convert to fraction form
    789,484.88/1,089,422.91 = 467,138.49/x
  3. Step 3: Cross multiply
    789,484.88x = 1,089,422.91 × 467,138.49
  4. Step 4: Simplify right side
    789,484.88x = 508,911,373,148.81
  5. Step 5: Solve for x
    x = 508,911,373,148.81/789,484.88
  6. Step 6: Final answer
    x = 644,611.94

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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.