Home / 1,147,669.12-1,719,508.65-805,386.61

Finding the Fourth Proportional to 1,147,669.12, 1,719,508.65 and 805,386.61

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Solution

The fourth proportional to 1,147,669.12, 1,719,508.65 and 805,386.61 is: 1,206,679.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,669.12 : 1,719,508.65 = 805,386.61 : x
  2. Step 2: Convert to fraction form
    1,147,669.12/1,719,508.65 = 805,386.61/x
  3. Step 3: Cross multiply
    1,147,669.12x = 1,719,508.65 × 805,386.61
  4. Step 4: Simplify right side
    1,147,669.12x = 1,384,869,246,148.66
  5. Step 5: Solve for x
    x = 1,384,869,246,148.66/1,147,669.12
  6. Step 6: Final answer
    x = 1,206,679.89

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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.