Home / 329,623.56-494,435.16-312,794.55

Finding the Fourth Proportional to 329,623.56, 494,435.16 and 312,794.55

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Solution

The fourth proportional to 329,623.56, 494,435.16 and 312,794.55 is: 469,191.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,623.56 : 494,435.16 = 312,794.55 : x
  2. Step 2: Convert to fraction form
    329,623.56/494,435.16 = 312,794.55/x
  3. Step 3: Cross multiply
    329,623.56x = 494,435.16 × 312,794.55
  4. Step 4: Simplify right side
    329,623.56x = 154,656,623,376.38
  5. Step 5: Solve for x
    x = 154,656,623,376.38/329,623.56
  6. Step 6: Final answer
    x = 469,191.65

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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.