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Finding the Fourth Proportional to 570,745.68, 787,561.52 and 329,107.64

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Solution

The fourth proportional to 570,745.68, 787,561.52 and 329,107.64 is: 454,129.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,745.68 : 787,561.52 = 329,107.64 : x
  2. Step 2: Convert to fraction form
    570,745.68/787,561.52 = 329,107.64/x
  3. Step 3: Cross multiply
    570,745.68x = 787,561.52 × 329,107.64
  4. Step 4: Simplify right side
    570,745.68x = 259,192,513,202.01
  5. Step 5: Solve for x
    x = 259,192,513,202.01/570,745.68
  6. Step 6: Final answer
    x = 454,129.61

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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.