Home / 1,235,138.20-1,852,707.30-811,352.28

Finding the Fourth Proportional to 1,235,138.20, 1,852,707.30 and 811,352.28

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Solution

The fourth proportional to 1,235,138.20, 1,852,707.30 and 811,352.28 is: 1,217,028.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,138.20 : 1,852,707.30 = 811,352.28 : x
  2. Step 2: Convert to fraction form
    1,235,138.20/1,852,707.30 = 811,352.28/x
  3. Step 3: Cross multiply
    1,235,138.20x = 1,852,707.30 × 811,352.28
  4. Step 4: Simplify right side
    1,235,138.20x = 1,503,198,282,764.11
  5. Step 5: Solve for x
    x = 1,503,198,282,764.11/1,235,138.20
  6. Step 6: Final answer
    x = 1,217,028.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.