Home / 780,282.12-1,077,253.38-494,047.56

Finding the Fourth Proportional to 780,282.12, 1,077,253.38 and 494,047.56

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Solution

The fourth proportional to 780,282.12, 1,077,253.38 and 494,047.56 is: 682,079.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,282.12 : 1,077,253.38 = 494,047.56 : x
  2. Step 2: Convert to fraction form
    780,282.12/1,077,253.38 = 494,047.56/x
  3. Step 3: Cross multiply
    780,282.12x = 1,077,253.38 × 494,047.56
  4. Step 4: Simplify right side
    780,282.12x = 532,214,403,890.75
  5. Step 5: Solve for x
    x = 532,214,403,890.75/780,282.12
  6. Step 6: Final answer
    x = 682,079.46

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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.