Home / 2,086,388.76-3,129,583.20-1,139,242.80

Finding the Fourth Proportional to 2,086,388.76, 3,129,583.20 and 1,139,242.80

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Solution

The fourth proportional to 2,086,388.76, 3,129,583.20 and 1,139,242.80 is: 1,708,864.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086,388.76 : 3,129,583.20 = 1,139,242.80 : x
  2. Step 2: Convert to fraction form
    2,086,388.76/3,129,583.20 = 1,139,242.80/x
  3. Step 3: Cross multiply
    2,086,388.76x = 3,129,583.20 × 1,139,242.80
  4. Step 4: Simplify right side
    2,086,388.76x = 3,565,355,127,600.96
  5. Step 5: Solve for x
    x = 3,565,355,127,600.96/2,086,388.76
  6. Step 6: Final answer
    x = 1,708,864.23

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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.