Home / 905,900.80-1,358,846.32-231,980.80

Finding the Fourth Proportional to 905,900.80, 1,358,846.32 and 231,980.80

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Solution

The fourth proportional to 905,900.80, 1,358,846.32 and 231,980.80 is: 347,969.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,900.80 : 1,358,846.32 = 231,980.80 : x
  2. Step 2: Convert to fraction form
    905,900.80/1,358,846.32 = 231,980.80/x
  3. Step 3: Cross multiply
    905,900.80x = 1,358,846.32 × 231,980.80
  4. Step 4: Simplify right side
    905,900.80x = 315,226,256,390.66
  5. Step 5: Solve for x
    x = 315,226,256,390.66/905,900.80
  6. Step 6: Final answer
    x = 347,969.95

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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.