Home / 1,217,285.33-1,679,551.94-787,047.75

Finding the Fourth Proportional to 1,217,285.33, 1,679,551.94 and 787,047.75

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Solution

The fourth proportional to 1,217,285.33, 1,679,551.94 and 787,047.75 is: 1,085,930.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,285.33 : 1,679,551.94 = 787,047.75 : x
  2. Step 2: Convert to fraction form
    1,217,285.33/1,679,551.94 = 787,047.75/x
  3. Step 3: Cross multiply
    1,217,285.33x = 1,679,551.94 × 787,047.75
  4. Step 4: Simplify right side
    1,217,285.33x = 1,321,887,577,352.75
  5. Step 5: Solve for x
    x = 1,321,887,577,352.75/1,217,285.33
  6. Step 6: Final answer
    x = 1,085,930.76

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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.