Home / 1,288,824.90-1,778,178.06-744,762.48

Finding the Fourth Proportional to 1,288,824.90, 1,778,178.06 and 744,762.48

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Solution

The fourth proportional to 1,288,824.90, 1,778,178.06 and 744,762.48 is: 1,027,540.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,824.90 : 1,778,178.06 = 744,762.48 : x
  2. Step 2: Convert to fraction form
    1,288,824.90/1,778,178.06 = 744,762.48/x
  3. Step 3: Cross multiply
    1,288,824.90x = 1,778,178.06 × 744,762.48
  4. Step 4: Simplify right side
    1,288,824.90x = 1,324,320,301,847.19
  5. Step 5: Solve for x
    x = 1,324,320,301,847.19/1,288,824.90
  6. Step 6: Final answer
    x = 1,027,540.90

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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.