Home / 2,086,384.77-3,129,577.20-1,139,238.81

Finding the Fourth Proportional to 2,086,384.77, 3,129,577.20 and 1,139,238.81

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Solution

The fourth proportional to 2,086,384.77, 3,129,577.20 and 1,139,238.81 is: 1,708,858.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086,384.77 : 3,129,577.20 = 1,139,238.81 : x
  2. Step 2: Convert to fraction form
    2,086,384.77/3,129,577.20 = 1,139,238.81/x
  3. Step 3: Cross multiply
    2,086,384.77x = 3,129,577.20 × 1,139,238.81
  4. Step 4: Simplify right side
    2,086,384.77x = 3,565,335,805,131.13
  5. Step 5: Solve for x
    x = 3,565,335,805,131.13/2,086,384.77
  6. Step 6: Final answer
    x = 1,708,858.24

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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.