Home / 1,288,602.25-1,778,057.67-744,788.75

Finding the Fourth Proportional to 1,288,602.25, 1,778,057.67 and 744,788.75

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Solution

The fourth proportional to 1,288,602.25, 1,778,057.67 and 744,788.75 is: 1,027,685.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,602.25 : 1,778,057.67 = 744,788.75 : x
  2. Step 2: Convert to fraction form
    1,288,602.25/1,778,057.67 = 744,788.75/x
  3. Step 3: Cross multiply
    1,288,602.25x = 1,778,057.67 × 744,788.75
  4. Step 4: Simplify right side
    1,288,602.25x = 1,324,277,349,467.21
  5. Step 5: Solve for x
    x = 1,324,277,349,467.21/1,288,602.25
  6. Step 6: Final answer
    x = 1,027,685.11

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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.