Home / 1,192,261.92-1,644,488.64-809,624.40

Finding the Fourth Proportional to 1,192,261.92, 1,644,488.64 and 809,624.40

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Solution

The fourth proportional to 1,192,261.92, 1,644,488.64 and 809,624.40 is: 1,116,716.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,261.92 : 1,644,488.64 = 809,624.40 : x
  2. Step 2: Convert to fraction form
    1,192,261.92/1,644,488.64 = 809,624.40/x
  3. Step 3: Cross multiply
    1,192,261.92x = 1,644,488.64 × 809,624.40
  4. Step 4: Simplify right side
    1,192,261.92x = 1,331,418,128,466.82
  5. Step 5: Solve for x
    x = 1,331,418,128,466.82/1,192,261.92
  6. Step 6: Final answer
    x = 1,116,716.14

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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.