Home / 879,087.75-1,318,682.75-339,347.09

Finding the Fourth Proportional to 879,087.75, 1,318,682.75 and 339,347.09

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Solution

The fourth proportional to 879,087.75, 1,318,682.75 and 339,347.09 is: 509,040.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,087.75 : 1,318,682.75 = 339,347.09 : x
  2. Step 2: Convert to fraction form
    879,087.75/1,318,682.75 = 339,347.09/x
  3. Step 3: Cross multiply
    879,087.75x = 1,318,682.75 × 339,347.09
  4. Step 4: Simplify right side
    879,087.75x = 447,491,145,555.55
  5. Step 5: Solve for x
    x = 447,491,145,555.55/879,087.75
  6. Step 6: Final answer
    x = 509,040.36

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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.