Home / 464,625.30-641,408.21-311,607.52

Finding the Fourth Proportional to 464,625.30, 641,408.21 and 311,607.52

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Solution

The fourth proportional to 464,625.30, 641,408.21 and 311,607.52 is: 430,169.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,625.30 : 641,408.21 = 311,607.52 : x
  2. Step 2: Convert to fraction form
    464,625.30/641,408.21 = 311,607.52/x
  3. Step 3: Cross multiply
    464,625.30x = 641,408.21 × 311,607.52
  4. Step 4: Simplify right side
    464,625.30x = 199,867,621,625.74
  5. Step 5: Solve for x
    x = 199,867,621,625.74/464,625.30
  6. Step 6: Final answer
    x = 430,169.48

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Why These Related Problems?

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