Home / 1,288,608.75-1,778,176.37-744,779.76

Finding the Fourth Proportional to 1,288,608.75, 1,778,176.37 and 744,779.76

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Solution

The fourth proportional to 1,288,608.75, 1,778,176.37 and 744,779.76 is: 1,027,736.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,608.75 : 1,778,176.37 = 744,779.76 : x
  2. Step 2: Convert to fraction form
    1,288,608.75/1,778,176.37 = 744,779.76/x
  3. Step 3: Cross multiply
    1,288,608.75x = 1,778,176.37 × 744,779.76
  4. Step 4: Simplify right side
    1,288,608.75x = 1,324,349,770,086.27
  5. Step 5: Solve for x
    x = 1,324,349,770,086.27/1,288,608.75
  6. Step 6: Final answer
    x = 1,027,736.13

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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.