Home / 1,280,236.14-1,766,776.68-736,371.36

Finding the Fourth Proportional to 1,280,236.14, 1,766,776.68 and 736,371.36

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Solution

The fourth proportional to 1,280,236.14, 1,766,776.68 and 736,371.36 is: 1,016,221.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,236.14 : 1,766,776.68 = 736,371.36 : x
  2. Step 2: Convert to fraction form
    1,280,236.14/1,766,776.68 = 736,371.36/x
  3. Step 3: Cross multiply
    1,280,236.14x = 1,766,776.68 × 736,371.36
  4. Step 4: Simplify right side
    1,280,236.14x = 1,301,003,746,667.88
  5. Step 5: Solve for x
    x = 1,301,003,746,667.88/1,280,236.14
  6. Step 6: Final answer
    x = 1,016,221.70

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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.