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Finding the Fourth Proportional to 800,409.70, 1,104,846.87 and 494,720.56

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Solution

The fourth proportional to 800,409.70, 1,104,846.87 and 494,720.56 is: 682,888.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,409.70 : 1,104,846.87 = 494,720.56 : x
  2. Step 2: Convert to fraction form
    800,409.70/1,104,846.87 = 494,720.56/x
  3. Step 3: Cross multiply
    800,409.70x = 1,104,846.87 × 494,720.56
  4. Step 4: Simplify right side
    800,409.70x = 546,590,462,240.65
  5. Step 5: Solve for x
    x = 546,590,462,240.65/800,409.70
  6. Step 6: Final answer
    x = 682,888.35

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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.