Home / 1,986,556.77-2,980,279.44-724,384.44

Finding the Fourth Proportional to 1,986,556.77, 2,980,279.44 and 724,384.44

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Solution

The fourth proportional to 1,986,556.77, 2,980,279.44 and 724,384.44 is: 1,086,738.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,556.77 : 2,980,279.44 = 724,384.44 : x
  2. Step 2: Convert to fraction form
    1,986,556.77/2,980,279.44 = 724,384.44/x
  3. Step 3: Cross multiply
    1,986,556.77x = 2,980,279.44 × 724,384.44
  4. Step 4: Simplify right side
    1,986,556.77x = 2,158,868,053,187.91
  5. Step 5: Solve for x
    x = 2,158,868,053,187.91/1,986,556.77
  6. Step 6: Final answer
    x = 1,086,738.67

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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.