Home / 756,321.75-1,043,745.89-416,811.87

Finding the Fourth Proportional to 756,321.75, 1,043,745.89 and 416,811.87

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Solution

The fourth proportional to 756,321.75, 1,043,745.89 and 416,811.87 is: 575,212.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,321.75 : 1,043,745.89 = 416,811.87 : x
  2. Step 2: Convert to fraction form
    756,321.75/1,043,745.89 = 416,811.87/x
  3. Step 3: Cross multiply
    756,321.75x = 1,043,745.89 × 416,811.87
  4. Step 4: Simplify right side
    756,321.75x = 435,045,674,131.66
  5. Step 5: Solve for x
    x = 435,045,674,131.66/756,321.75
  6. Step 6: Final answer
    x = 575,212.43

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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.