Home / 1,138,082.56-1,570,420.08-628,754.56

Finding the Fourth Proportional to 1,138,082.56, 1,570,420.08 and 628,754.56

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Solution

The fourth proportional to 1,138,082.56, 1,570,420.08 and 628,754.56 is: 867,607.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,082.56 : 1,570,420.08 = 628,754.56 : x
  2. Step 2: Convert to fraction form
    1,138,082.56/1,570,420.08 = 628,754.56/x
  3. Step 3: Cross multiply
    1,138,082.56x = 1,570,420.08 × 628,754.56
  4. Step 4: Simplify right side
    1,138,082.56x = 987,408,786,415.57
  5. Step 5: Solve for x
    x = 987,408,786,415.57/1,138,082.56
  6. Step 6: Final answer
    x = 867,607.34

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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.