Home / 485,846.07-670,286.82-281,782.56

Finding the Fourth Proportional to 485,846.07, 670,286.82 and 281,782.56

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Solution

The fourth proportional to 485,846.07, 670,286.82 and 281,782.56 is: 388,755.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,846.07 : 670,286.82 = 281,782.56 : x
  2. Step 2: Convert to fraction form
    485,846.07/670,286.82 = 281,782.56/x
  3. Step 3: Cross multiply
    485,846.07x = 670,286.82 × 281,782.56
  4. Step 4: Simplify right side
    485,846.07x = 188,875,136,073.86
  5. Step 5: Solve for x
    x = 188,875,136,073.86/485,846.07
  6. Step 6: Final answer
    x = 388,755.10

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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.