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Finding the Fourth Proportional to 522,469.55, 721,015.73 and 304,672.18

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Solution

The fourth proportional to 522,469.55, 721,015.73 and 304,672.18 is: 420,452.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,469.55 : 721,015.73 = 304,672.18 : x
  2. Step 2: Convert to fraction form
    522,469.55/721,015.73 = 304,672.18/x
  3. Step 3: Cross multiply
    522,469.55x = 721,015.73 × 304,672.18
  4. Step 4: Simplify right side
    522,469.55x = 219,673,434,273.39
  5. Step 5: Solve for x
    x = 219,673,434,273.39/522,469.55
  6. Step 6: Final answer
    x = 420,452.13

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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.