Home / 1,285,912.95-1,928,475.63-889,103.67

Finding the Fourth Proportional to 1,285,912.95, 1,928,475.63 and 889,103.67

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Solution

The fourth proportional to 1,285,912.95, 1,928,475.63 and 889,103.67 is: 1,333,383.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,912.95 : 1,928,475.63 = 889,103.67 : x
  2. Step 2: Convert to fraction form
    1,285,912.95/1,928,475.63 = 889,103.67/x
  3. Step 3: Cross multiply
    1,285,912.95x = 1,928,475.63 × 889,103.67
  4. Step 4: Simplify right side
    1,285,912.95x = 1,714,614,760,138.56
  5. Step 5: Solve for x
    x = 1,714,614,760,138.56/1,285,912.95
  6. Step 6: Final answer
    x = 1,333,383.23

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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.