Home / 856,644.05-1,284,969.02-216,947.57

Finding the Fourth Proportional to 856,644.05, 1,284,969.02 and 216,947.57

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Solution

The fourth proportional to 856,644.05, 1,284,969.02 and 216,947.57 is: 325,422.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,644.05 : 1,284,969.02 = 216,947.57 : x
  2. Step 2: Convert to fraction form
    856,644.05/1,284,969.02 = 216,947.57/x
  3. Step 3: Cross multiply
    856,644.05x = 1,284,969.02 × 216,947.57
  4. Step 4: Simplify right side
    856,644.05x = 278,770,898,904.70
  5. Step 5: Solve for x
    x = 278,770,898,904.70/856,644.05
  6. Step 6: Final answer
    x = 325,422.09

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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.