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Finding the Fourth Proportional to 398,527.80, 597,791.70 and 304,049.40

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Solution

The fourth proportional to 398,527.80, 597,791.70 and 304,049.40 is: 456,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,527.80 : 597,791.70 = 304,049.40 : x
  2. Step 2: Convert to fraction form
    398,527.80/597,791.70 = 304,049.40/x
  3. Step 3: Cross multiply
    398,527.80x = 597,791.70 × 304,049.40
  4. Step 4: Simplify right side
    398,527.80x = 181,758,207,709.98
  5. Step 5: Solve for x
    x = 181,758,207,709.98/398,527.80
  6. Step 6: Final answer
    x = 456,074.10

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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.