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Finding the Fourth Proportional to 426,074.40, 587,982.22 and 235,087.78

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Solution

The fourth proportional to 426,074.40, 587,982.22 and 235,087.78 is: 324,420.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,074.40 : 587,982.22 = 235,087.78 : x
  2. Step 2: Convert to fraction form
    426,074.40/587,982.22 = 235,087.78/x
  3. Step 3: Cross multiply
    426,074.40x = 587,982.22 × 235,087.78
  4. Step 4: Simplify right side
    426,074.40x = 138,227,434,779.27
  5. Step 5: Solve for x
    x = 138,227,434,779.27/426,074.40
  6. Step 6: Final answer
    x = 324,420.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.