Home / 1,127,216-1,555,665.66-643,853.36

Finding the Fourth Proportional to 1,127,216, 1,555,665.66 and 643,853.36

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Solution

The fourth proportional to 1,127,216, 1,555,665.66 and 643,853.36 is: 888,579.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,216 : 1,555,665.66 = 643,853.36 : x
  2. Step 2: Convert to fraction form
    1,127,216/1,555,665.66 = 643,853.36/x
  3. Step 3: Cross multiply
    1,127,216x = 1,555,665.66 × 643,853.36
  4. Step 4: Simplify right side
    1,127,216x = 1,001,620,562,227.62
  5. Step 5: Solve for x
    x = 1,001,620,562,227.62/1,127,216
  6. Step 6: Final answer
    x = 888,579.09

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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.