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Finding the Fourth Proportional to 570,286.66, 786,992.60 and 315,629.14

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Solution

The fourth proportional to 570,286.66, 786,992.60 and 315,629.14 is: 435,566.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,286.66 : 786,992.60 = 315,629.14 : x
  2. Step 2: Convert to fraction form
    570,286.66/786,992.60 = 315,629.14/x
  3. Step 3: Cross multiply
    570,286.66x = 786,992.60 × 315,629.14
  4. Step 4: Simplify right side
    570,286.66x = 248,397,797,524.36
  5. Step 5: Solve for x
    x = 248,397,797,524.36/570,286.66
  6. Step 6: Final answer
    x = 435,566.56

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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.