Home / 1,280,404.58-1,766,993.96-707,481.65

Finding the Fourth Proportional to 1,280,404.58, 1,766,993.96 and 707,481.65

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Solution

The fourth proportional to 1,280,404.58, 1,766,993.96 and 707,481.65 is: 976,344.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,404.58 : 1,766,993.96 = 707,481.65 : x
  2. Step 2: Convert to fraction form
    1,280,404.58/1,766,993.96 = 707,481.65/x
  3. Step 3: Cross multiply
    1,280,404.58x = 1,766,993.96 × 707,481.65
  4. Step 4: Simplify right side
    1,280,404.58x = 1,250,115,789,988.46
  5. Step 5: Solve for x
    x = 1,250,115,789,988.46/1,280,404.58
  6. Step 6: Final answer
    x = 976,344.36

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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.