Home / 780,371.29-1,170,650.69-274,827.81

Finding the Fourth Proportional to 780,371.29, 1,170,650.69 and 274,827.81

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Solution

The fourth proportional to 780,371.29, 1,170,650.69 and 274,827.81 is: 412,274.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,371.29 : 1,170,650.69 = 274,827.81 : x
  2. Step 2: Convert to fraction form
    780,371.29/1,170,650.69 = 274,827.81/x
  3. Step 3: Cross multiply
    780,371.29x = 1,170,650.69 × 274,827.81
  4. Step 4: Simplify right side
    780,371.29x = 321,727,365,407.69
  5. Step 5: Solve for x
    x = 321,727,365,407.69/780,371.29
  6. Step 6: Final answer
    x = 412,274.73

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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.