Home / 1,138,043.22-1,570,516.20-628,757.34

Finding the Fourth Proportional to 1,138,043.22, 1,570,516.20 and 628,757.34

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Solution

The fourth proportional to 1,138,043.22, 1,570,516.20 and 628,757.34 is: 867,694.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,043.22 : 1,570,516.20 = 628,757.34 : x
  2. Step 2: Convert to fraction form
    1,138,043.22/1,570,516.20 = 628,757.34/x
  3. Step 3: Cross multiply
    1,138,043.22x = 1,570,516.20 × 628,757.34
  4. Step 4: Simplify right side
    1,138,043.22x = 987,473,588,338.91
  5. Step 5: Solve for x
    x = 987,473,588,338.91/1,138,043.22
  6. Step 6: Final answer
    x = 867,694.28

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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.