Home / 757,890.89-1,135,851.70-308,087.85

Finding the Fourth Proportional to 757,890.89, 1,135,851.70 and 308,087.85

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Solution

The fourth proportional to 757,890.89, 1,135,851.70 and 308,087.85 is: 461,731.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,890.89 : 1,135,851.70 = 308,087.85 : x
  2. Step 2: Convert to fraction form
    757,890.89/1,135,851.70 = 308,087.85/x
  3. Step 3: Cross multiply
    757,890.89x = 1,135,851.70 × 308,087.85
  4. Step 4: Simplify right side
    757,890.89x = 349,942,108,171.85
  5. Step 5: Solve for x
    x = 349,942,108,171.85/757,890.89
  6. Step 6: Final answer
    x = 461,731.51

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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.