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Finding the Fourth Proportional to 574,499.07, 861,807.60 and 219,811.41

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Solution

The fourth proportional to 574,499.07, 861,807.60 and 219,811.41 is: 329,739.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,499.07 : 861,807.60 = 219,811.41 : x
  2. Step 2: Convert to fraction form
    574,499.07/861,807.60 = 219,811.41/x
  3. Step 3: Cross multiply
    574,499.07x = 861,807.60 × 219,811.41
  4. Step 4: Simplify right side
    574,499.07x = 189,435,143,704.72
  5. Step 5: Solve for x
    x = 189,435,143,704.72/574,499.07
  6. Step 6: Final answer
    x = 329,739.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.