Home / 1,237,947.54-1,856,921.31-817,125

Finding the Fourth Proportional to 1,237,947.54, 1,856,921.31 and 817,125

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Solution

The fourth proportional to 1,237,947.54, 1,856,921.31 and 817,125 is: 1,225,687.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,947.54 : 1,856,921.31 = 817,125 : x
  2. Step 2: Convert to fraction form
    1,237,947.54/1,856,921.31 = 817,125/x
  3. Step 3: Cross multiply
    1,237,947.54x = 1,856,921.31 × 817,125
  4. Step 4: Simplify right side
    1,237,947.54x = 1,517,336,825,433.75
  5. Step 5: Solve for x
    x = 1,517,336,825,433.75/1,237,947.54
  6. Step 6: Final answer
    x = 1,225,687.50

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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.