Home / 405,926.55-609,452.97-255,723.39

Finding the Fourth Proportional to 405,926.55, 609,452.97 and 255,723.39

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Solution

The fourth proportional to 405,926.55, 609,452.97 and 255,723.39 is: 383,939.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,926.55 : 609,452.97 = 255,723.39 : x
  2. Step 2: Convert to fraction form
    405,926.55/609,452.97 = 255,723.39/x
  3. Step 3: Cross multiply
    405,926.55x = 609,452.97 × 255,723.39
  4. Step 4: Simplify right side
    405,926.55x = 155,851,379,533.97
  5. Step 5: Solve for x
    x = 155,851,379,533.97/405,926.55
  6. Step 6: Final answer
    x = 383,939.85

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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.