Home / 1,389,249.70-2,082,708.15-724,401.70

Finding the Fourth Proportional to 1,389,249.70, 2,082,708.15 and 724,401.70

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Solution

The fourth proportional to 1,389,249.70, 2,082,708.15 and 724,401.70 is: 1,085,994.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,249.70 : 2,082,708.15 = 724,401.70 : x
  2. Step 2: Convert to fraction form
    1,389,249.70/2,082,708.15 = 724,401.70/x
  3. Step 3: Cross multiply
    1,389,249.70x = 2,082,708.15 × 724,401.70
  4. Step 4: Simplify right side
    1,389,249.70x = 1,508,717,324,463.85
  5. Step 5: Solve for x
    x = 1,508,717,324,463.85/1,389,249.70
  6. Step 6: Final answer
    x = 1,085,994.35

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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.