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Finding the Fourth Proportional to 329,731.70, 494,597.55 and 307,613.30

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Solution

The fourth proportional to 329,731.70, 494,597.55 and 307,613.30 is: 461,419.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,731.70 : 494,597.55 = 307,613.30 : x
  2. Step 2: Convert to fraction form
    329,731.70/494,597.55 = 307,613.30/x
  3. Step 3: Cross multiply
    329,731.70x = 494,597.55 × 307,613.30
  4. Step 4: Simplify right side
    329,731.70x = 152,144,784,527.42
  5. Step 5: Solve for x
    x = 152,144,784,527.42/329,731.70
  6. Step 6: Final answer
    x = 461,419.95

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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.