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Finding the Fourth Proportional to 328,986.24, 493,482.24 and 79,668.48

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Solution

The fourth proportional to 328,986.24, 493,482.24 and 79,668.48 is: 119,503.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,986.24 : 493,482.24 = 79,668.48 : x
  2. Step 2: Convert to fraction form
    328,986.24/493,482.24 = 79,668.48/x
  3. Step 3: Cross multiply
    328,986.24x = 493,482.24 × 79,668.48
  4. Step 4: Simplify right side
    328,986.24x = 39,314,979,967.80
  5. Step 5: Solve for x
    x = 39,314,979,967.80/328,986.24
  6. Step 6: Final answer
    x = 119,503.42

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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.