Home / 935,863.20-1,401,721.20-724,816.80

Finding the Fourth Proportional to 935,863.20, 1,401,721.20 and 724,816.80

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Solution

The fourth proportional to 935,863.20, 1,401,721.20 and 724,816.80 is: 1,085,619.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,863.20 : 1,401,721.20 = 724,816.80 : x
  2. Step 2: Convert to fraction form
    935,863.20/1,401,721.20 = 724,816.80/x
  3. Step 3: Cross multiply
    935,863.20x = 1,401,721.20 × 724,816.80
  4. Step 4: Simplify right side
    935,863.20x = 1,015,991,074,676.16
  5. Step 5: Solve for x
    x = 1,015,991,074,676.16/935,863.20
  6. Step 6: Final answer
    x = 1,085,619.22

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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.