Home / 1,093,648.40-1,639,306.20-419,469.20

Finding the Fourth Proportional to 1,093,648.40, 1,639,306.20 and 419,469.20

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Solution

The fourth proportional to 1,093,648.40, 1,639,306.20 and 419,469.20 is: 628,756.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,648.40 : 1,639,306.20 = 419,469.20 : x
  2. Step 2: Convert to fraction form
    1,093,648.40/1,639,306.20 = 419,469.20/x
  3. Step 3: Cross multiply
    1,093,648.40x = 1,639,306.20 × 419,469.20
  4. Step 4: Simplify right side
    1,093,648.40x = 687,638,460,269.04
  5. Step 5: Solve for x
    x = 687,638,460,269.04/1,093,648.40
  6. Step 6: Final answer
    x = 628,756.43

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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.