Home / 939,229.33-1,296,138.97-509,509.46

Finding the Fourth Proportional to 939,229.33, 1,296,138.97 and 509,509.46

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Solution

The fourth proportional to 939,229.33, 1,296,138.97 and 509,509.46 is: 703,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,229.33 : 1,296,138.97 = 509,509.46 : x
  2. Step 2: Convert to fraction form
    939,229.33/1,296,138.97 = 509,509.46/x
  3. Step 3: Cross multiply
    939,229.33x = 1,296,138.97 × 509,509.46
  4. Step 4: Simplify right side
    939,229.33x = 660,395,066,689.66
  5. Step 5: Solve for x
    x = 660,395,066,689.66/939,229.33
  6. Step 6: Final answer
    x = 703,124.41

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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.