Home / 782,977.56-1,080,584.88-438,871.94

Finding the Fourth Proportional to 782,977.56, 1,080,584.88 and 438,871.94

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Solution

The fourth proportional to 782,977.56, 1,080,584.88 and 438,871.94 is: 605,685.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,977.56 : 1,080,584.88 = 438,871.94 : x
  2. Step 2: Convert to fraction form
    782,977.56/1,080,584.88 = 438,871.94/x
  3. Step 3: Cross multiply
    782,977.56x = 1,080,584.88 × 438,871.94
  4. Step 4: Simplify right side
    782,977.56x = 474,238,382,620.27
  5. Step 5: Solve for x
    x = 474,238,382,620.27/782,977.56
  6. Step 6: Final answer
    x = 605,685.79

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1.5x scale

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.