Home / 1,147,671.12-1,719,511.65-805,388.61

Finding the Fourth Proportional to 1,147,671.12, 1,719,511.65 and 805,388.61

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Solution

The fourth proportional to 1,147,671.12, 1,719,511.65 and 805,388.61 is: 1,206,682.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,671.12 : 1,719,511.65 = 805,388.61 : x
  2. Step 2: Convert to fraction form
    1,147,671.12/1,719,511.65 = 805,388.61/x
  3. Step 3: Cross multiply
    1,147,671.12x = 1,719,511.65 × 805,388.61
  4. Step 4: Simplify right side
    1,147,671.12x = 1,384,875,097,672.31
  5. Step 5: Solve for x
    x = 1,384,875,097,672.31/1,147,671.12
  6. Step 6: Final answer
    x = 1,206,682.88

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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.