Home / 1,238,635.36-1,708,686.66-809,166.88

Finding the Fourth Proportional to 1,238,635.36, 1,708,686.66 and 809,166.88

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Solution

The fourth proportional to 1,238,635.36, 1,708,686.66 and 809,166.88 is: 1,116,238.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,635.36 : 1,708,686.66 = 809,166.88 : x
  2. Step 2: Convert to fraction form
    1,238,635.36/1,708,686.66 = 809,166.88/x
  3. Step 3: Cross multiply
    1,238,635.36x = 1,708,686.66 × 809,166.88
  4. Step 4: Simplify right side
    1,238,635.36x = 1,382,612,653,569.82
  5. Step 5: Solve for x
    x = 1,382,612,653,569.82/1,238,635.36
  6. Step 6: Final answer
    x = 1,116,238.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.