Home / 1,280,616.36-1,767,251.21-707,656.54

Finding the Fourth Proportional to 1,280,616.36, 1,767,251.21 and 707,656.54

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Solution

The fourth proportional to 1,280,616.36, 1,767,251.21 and 707,656.54 is: 976,566.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,616.36 : 1,767,251.21 = 707,656.54 : x
  2. Step 2: Convert to fraction form
    1,280,616.36/1,767,251.21 = 707,656.54/x
  3. Step 3: Cross multiply
    1,280,616.36x = 1,767,251.21 × 707,656.54
  4. Step 4: Simplify right side
    1,280,616.36x = 1,250,606,867,743.16
  5. Step 5: Solve for x
    x = 1,250,606,867,743.16/1,280,616.36
  6. Step 6: Final answer
    x = 976,566.37

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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.