Home / 438,131.20-655,738.80-317,846.20

Finding the Fourth Proportional to 438,131.20, 655,738.80 and 317,846.20

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Solution

The fourth proportional to 438,131.20, 655,738.80 and 317,846.20 is: 475,711.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,131.20 : 655,738.80 = 317,846.20 : x
  2. Step 2: Convert to fraction form
    438,131.20/655,738.80 = 317,846.20/x
  3. Step 3: Cross multiply
    438,131.20x = 655,738.80 × 317,846.20
  4. Step 4: Simplify right side
    438,131.20x = 208,424,085,772.56
  5. Step 5: Solve for x
    x = 208,424,085,772.56/438,131.20
  6. Step 6: Final answer
    x = 475,711.58

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1.5x scale

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.