Home / 757,890.11-1,135,847.97-308,085.57

Finding the Fourth Proportional to 757,890.11, 1,135,847.97 and 308,085.57

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Solution

The fourth proportional to 757,890.11, 1,135,847.97 and 308,085.57 is: 461,727.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,890.11 : 1,135,847.97 = 308,085.57 : x
  2. Step 2: Convert to fraction form
    757,890.11/1,135,847.97 = 308,085.57/x
  3. Step 3: Cross multiply
    757,890.11x = 1,135,847.97 × 308,085.57
  4. Step 4: Simplify right side
    757,890.11x = 349,938,369,270.79
  5. Step 5: Solve for x
    x = 349,938,369,270.79/757,890.11
  6. Step 6: Final answer
    x = 461,727.05

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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.