Home / 1,137,939.38-1,570,222.46-628,611.38

Finding the Fourth Proportional to 1,137,939.38, 1,570,222.46 and 628,611.38

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Solution

The fourth proportional to 1,137,939.38, 1,570,222.46 and 628,611.38 is: 867,409.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,939.38 : 1,570,222.46 = 628,611.38 : x
  2. Step 2: Convert to fraction form
    1,137,939.38/1,570,222.46 = 628,611.38/x
  3. Step 3: Cross multiply
    1,137,939.38x = 1,570,222.46 × 628,611.38
  4. Step 4: Simplify right side
    1,137,939.38x = 987,059,700,418.98
  5. Step 5: Solve for x
    x = 987,059,700,418.98/1,137,939.38
  6. Step 6: Final answer
    x = 867,409.74

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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.