Home / 886,648.20-1,329,972.30-800,939.40

Finding the Fourth Proportional to 886,648.20, 1,329,972.30 and 800,939.40

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Solution

The fourth proportional to 886,648.20, 1,329,972.30 and 800,939.40 is: 1,201,409.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,648.20 : 1,329,972.30 = 800,939.40 : x
  2. Step 2: Convert to fraction form
    886,648.20/1,329,972.30 = 800,939.40/x
  3. Step 3: Cross multiply
    886,648.20x = 1,329,972.30 × 800,939.40
  4. Step 4: Simplify right side
    886,648.20x = 1,065,227,215,978.62
  5. Step 5: Solve for x
    x = 1,065,227,215,978.62/886,648.20
  6. Step 6: Final answer
    x = 1,201,409.10

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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.