Home / 837,520.49-1,256,120.49-325,185.64

Finding the Fourth Proportional to 837,520.49, 1,256,120.49 and 325,185.64

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Solution

The fourth proportional to 837,520.49, 1,256,120.49 and 325,185.64 is: 487,716.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,520.49 : 1,256,120.49 = 325,185.64 : x
  2. Step 2: Convert to fraction form
    837,520.49/1,256,120.49 = 325,185.64/x
  3. Step 3: Cross multiply
    837,520.49x = 1,256,120.49 × 325,185.64
  4. Step 4: Simplify right side
    837,520.49x = 408,472,343,536.91
  5. Step 5: Solve for x
    x = 408,472,343,536.91/837,520.49
  6. Step 6: Final answer
    x = 487,716.24

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Double scale
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Similar ratio
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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.