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Finding the Fourth Proportional to 490,057.48, 676,352.46 and 299,181.52

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Solution

The fourth proportional to 490,057.48, 676,352.46 and 299,181.52 is: 412,915.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,057.48 : 676,352.46 = 299,181.52 : x
  2. Step 2: Convert to fraction form
    490,057.48/676,352.46 = 299,181.52/x
  3. Step 3: Cross multiply
    490,057.48x = 676,352.46 × 299,181.52
  4. Step 4: Simplify right side
    490,057.48x = 202,352,157,038.54
  5. Step 5: Solve for x
    x = 202,352,157,038.54/490,057.48
  6. Step 6: Final answer
    x = 412,915.15

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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.