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Finding the Fourth Proportional to 328,776.48, 494,338.32 and 302,794.80

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Solution

The fourth proportional to 328,776.48, 494,338.32 and 302,794.80 is: 455,273.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,776.48 : 494,338.32 = 302,794.80 : x
  2. Step 2: Convert to fraction form
    328,776.48/494,338.32 = 302,794.80/x
  3. Step 3: Cross multiply
    328,776.48x = 494,338.32 × 302,794.80
  4. Step 4: Simplify right side
    328,776.48x = 149,683,072,736.74
  5. Step 5: Solve for x
    x = 149,683,072,736.74/328,776.48
  6. Step 6: Final answer
    x = 455,273.06

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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.