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Finding the Fourth Proportional to 756,245, 1,043,640.06 and 416,735.12

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Solution

The fourth proportional to 756,245, 1,043,640.06 and 416,735.12 is: 575,106.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,245 : 1,043,640.06 = 416,735.12 : x
  2. Step 2: Convert to fraction form
    756,245/1,043,640.06 = 416,735.12/x
  3. Step 3: Cross multiply
    756,245x = 1,043,640.06 × 416,735.12
  4. Step 4: Simplify right side
    756,245x = 434,921,465,640.91
  5. Step 5: Solve for x
    x = 434,921,465,640.91/756,245
  6. Step 6: Final answer
    x = 575,106.57

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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.