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Finding the Fourth Proportional to 329,626.56, 494,439.66 and 312,797.55

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Solution

The fourth proportional to 329,626.56, 494,439.66 and 312,797.55 is: 469,196.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,626.56 : 494,439.66 = 312,797.55 : x
  2. Step 2: Convert to fraction form
    329,626.56/494,439.66 = 312,797.55/x
  3. Step 3: Cross multiply
    329,626.56x = 494,439.66 × 312,797.55
  4. Step 4: Simplify right side
    329,626.56x = 154,659,514,270.83
  5. Step 5: Solve for x
    x = 154,659,514,270.83/329,626.56
  6. Step 6: Final answer
    x = 469,196.15

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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.