Home / 489,942.27-733,630.32-320,930.91

Finding the Fourth Proportional to 489,942.27, 733,630.32 and 320,930.91

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Solution

The fourth proportional to 489,942.27, 733,630.32 and 320,930.91 is: 480,555.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,942.27 : 733,630.32 = 320,930.91 : x
  2. Step 2: Convert to fraction form
    489,942.27/733,630.32 = 320,930.91/x
  3. Step 3: Cross multiply
    489,942.27x = 733,630.32 × 320,930.91
  4. Step 4: Simplify right side
    489,942.27x = 235,444,646,201.19
  5. Step 5: Solve for x
    x = 235,444,646,201.19/489,942.27
  6. Step 6: Final answer
    x = 480,555.90

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1.5x scale

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.