Home / 644,835.89-965,778.80-308,113.22

Finding the Fourth Proportional to 644,835.89, 965,778.80 and 308,113.22

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Solution

The fourth proportional to 644,835.89, 965,778.80 and 308,113.22 is: 461,465.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,835.89 : 965,778.80 = 308,113.22 : x
  2. Step 2: Convert to fraction form
    644,835.89/965,778.80 = 308,113.22/x
  3. Step 3: Cross multiply
    644,835.89x = 965,778.80 × 308,113.22
  4. Step 4: Simplify right side
    644,835.89x = 297,569,211,317.11
  5. Step 5: Solve for x
    x = 297,569,211,317.11/644,835.89
  6. Step 6: Final answer
    x = 461,465.03

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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.