Home / 780,370.29-1,170,649.19-274,826.81

Finding the Fourth Proportional to 780,370.29, 1,170,649.19 and 274,826.81

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Solution

The fourth proportional to 780,370.29, 1,170,649.19 and 274,826.81 is: 412,273.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,370.29 : 1,170,649.19 = 274,826.81 : x
  2. Step 2: Convert to fraction form
    780,370.29/1,170,649.19 = 274,826.81/x
  3. Step 3: Cross multiply
    780,370.29x = 1,170,649.19 × 274,826.81
  4. Step 4: Simplify right side
    780,370.29x = 321,725,786,130.47
  5. Step 5: Solve for x
    x = 321,725,786,130.47/780,370.29
  6. Step 6: Final answer
    x = 412,273.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.