Home / 328,986.99-493,483.37-79,669.23

Finding the Fourth Proportional to 328,986.99, 493,483.37 and 79,669.23

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Solution

The fourth proportional to 328,986.99, 493,483.37 and 79,669.23 is: 119,504.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,986.99 : 493,483.37 = 79,669.23 : x
  2. Step 2: Convert to fraction form
    328,986.99/493,483.37 = 79,669.23/x
  3. Step 3: Cross multiply
    328,986.99x = 493,483.37 × 79,669.23
  4. Step 4: Simplify right side
    328,986.99x = 39,315,439,707.36
  5. Step 5: Solve for x
    x = 39,315,439,707.36/328,986.99
  6. Step 6: Final answer
    x = 119,504.54

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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.