Home / 823,257.45-1,234,176.48-318,172.77

Finding the Fourth Proportional to 823,257.45, 1,234,176.48 and 318,172.77

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Solution

The fourth proportional to 823,257.45, 1,234,176.48 and 318,172.77 is: 476,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,257.45 : 1,234,176.48 = 318,172.77 : x
  2. Step 2: Convert to fraction form
    823,257.45/1,234,176.48 = 318,172.77/x
  3. Step 3: Cross multiply
    823,257.45x = 1,234,176.48 × 318,172.77
  4. Step 4: Simplify right side
    823,257.45x = 392,681,349,310.45
  5. Step 5: Solve for x
    x = 392,681,349,310.45/823,257.45
  6. Step 6: Final answer
    x = 476,984.87

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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.