Home / 756,021.39-1,043,309.43-416,489.64

Finding the Fourth Proportional to 756,021.39, 1,043,309.43 and 416,489.64

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Solution

The fourth proportional to 756,021.39, 1,043,309.43 and 416,489.64 is: 574,755.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,021.39 : 1,043,309.43 = 416,489.64 : x
  2. Step 2: Convert to fraction form
    756,021.39/1,043,309.43 = 416,489.64/x
  3. Step 3: Cross multiply
    756,021.39x = 1,043,309.43 × 416,489.64
  4. Step 4: Simplify right side
    756,021.39x = 434,527,568,909.31
  5. Step 5: Solve for x
    x = 434,527,568,909.31/756,021.39
  6. Step 6: Final answer
    x = 574,755.65

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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.