Home / 1,207,065.72-1,665,745.11-663,235.14

Finding the Fourth Proportional to 1,207,065.72, 1,665,745.11 and 663,235.14

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Solution

The fourth proportional to 1,207,065.72, 1,665,745.11 and 663,235.14 is: 915,261.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,065.72 : 1,665,745.11 = 663,235.14 : x
  2. Step 2: Convert to fraction form
    1,207,065.72/1,665,745.11 = 663,235.14/x
  3. Step 3: Cross multiply
    1,207,065.72x = 1,665,745.11 × 663,235.14
  4. Step 4: Simplify right side
    1,207,065.72x = 1,104,780,691,235.17
  5. Step 5: Solve for x
    x = 1,104,780,691,235.17/1,207,065.72
  6. Step 6: Final answer
    x = 915,261.43

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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.