Home / 876,890.62-1,315,395.36-308,202.58

Finding the Fourth Proportional to 876,890.62, 1,315,395.36 and 308,202.58

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Solution

The fourth proportional to 876,890.62, 1,315,395.36 and 308,202.58 is: 462,324.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,890.62 : 1,315,395.36 = 308,202.58 : x
  2. Step 2: Convert to fraction form
    876,890.62/1,315,395.36 = 308,202.58/x
  3. Step 3: Cross multiply
    876,890.62x = 1,315,395.36 × 308,202.58
  4. Step 4: Simplify right side
    876,890.62x = 405,408,243,672.03
  5. Step 5: Solve for x
    x = 405,408,243,672.03/876,890.62
  6. Step 6: Final answer
    x = 462,324.76

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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.