Home / 780,372.29-1,170,652.20-274,828.82

Finding the Fourth Proportional to 780,372.29, 1,170,652.20 and 274,828.82

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Solution

The fourth proportional to 780,372.29, 1,170,652.20 and 274,828.82 is: 412,276.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,372.29 : 1,170,652.20 = 274,828.82 : x
  2. Step 2: Convert to fraction form
    780,372.29/1,170,652.20 = 274,828.82/x
  3. Step 3: Cross multiply
    780,372.29x = 1,170,652.20 × 274,828.82
  4. Step 4: Simplify right side
    780,372.29x = 321,728,962,756.40
  5. Step 5: Solve for x
    x = 321,728,962,756.40/780,372.29
  6. Step 6: Final answer
    x = 412,276.25

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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.