Home / 783,877.71-1,081,947.20-481,896.75

Finding the Fourth Proportional to 783,877.71, 1,081,947.20 and 481,896.75

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Solution

The fourth proportional to 783,877.71, 1,081,947.20 and 481,896.75 is: 665,137.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,877.71 : 1,081,947.20 = 481,896.75 : x
  2. Step 2: Convert to fraction form
    783,877.71/1,081,947.20 = 481,896.75/x
  3. Step 3: Cross multiply
    783,877.71x = 1,081,947.20 × 481,896.75
  4. Step 4: Simplify right side
    783,877.71x = 521,386,836,942.12
  5. Step 5: Solve for x
    x = 521,386,836,942.12/783,877.71
  6. Step 6: Final answer
    x = 665,137.98

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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.