Home / 939,578.22-1,296,621.43-509,858.44

Finding the Fourth Proportional to 939,578.22, 1,296,621.43 and 509,858.44

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Solution

The fourth proportional to 939,578.22, 1,296,621.43 and 509,858.44 is: 703,606.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,578.22 : 1,296,621.43 = 509,858.44 : x
  2. Step 2: Convert to fraction form
    939,578.22/1,296,621.43 = 509,858.44/x
  3. Step 3: Cross multiply
    939,578.22x = 1,296,621.43 × 509,858.44
  4. Step 4: Simplify right side
    939,578.22x = 661,093,379,570.37
  5. Step 5: Solve for x
    x = 661,093,379,570.37/939,578.22
  6. Step 6: Final answer
    x = 703,606.54

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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.