Home / 1,378,576.90-2,065,532.55-667,072.90

Finding the Fourth Proportional to 1,378,576.90, 2,065,532.55 and 667,072.90

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Solution

The fourth proportional to 1,378,576.90, 2,065,532.55 and 667,072.90 is: 999,480.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,576.90 : 2,065,532.55 = 667,072.90 : x
  2. Step 2: Convert to fraction form
    1,378,576.90/2,065,532.55 = 667,072.90/x
  3. Step 3: Cross multiply
    1,378,576.90x = 2,065,532.55 × 667,072.90
  4. Step 4: Simplify right side
    1,378,576.90x = 1,377,860,788,172.90
  5. Step 5: Solve for x
    x = 1,377,860,788,172.90/1,378,576.90
  6. Step 6: Final answer
    x = 999,480.54

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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.