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Finding the Fourth Proportional to 613,481.46, 846,629.22 and 355,354.30

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Solution

The fourth proportional to 613,481.46, 846,629.22 and 355,354.30 is: 490,403.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,481.46 : 846,629.22 = 355,354.30 : x
  2. Step 2: Convert to fraction form
    613,481.46/846,629.22 = 355,354.30/x
  3. Step 3: Cross multiply
    613,481.46x = 846,629.22 × 355,354.30
  4. Step 4: Simplify right side
    613,481.46x = 300,853,330,307.50
  5. Step 5: Solve for x
    x = 300,853,330,307.50/613,481.46
  6. Step 6: Final answer
    x = 490,403.29

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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.