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Finding the Fourth Proportional to 447,072, 670,609.62 and 424,647.96

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Solution

The fourth proportional to 447,072, 670,609.62 and 424,647.96 is: 636,973.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,072 : 670,609.62 = 424,647.96 : x
  2. Step 2: Convert to fraction form
    447,072/670,609.62 = 424,647.96/x
  3. Step 3: Cross multiply
    447,072x = 670,609.62 × 424,647.96
  4. Step 4: Simplify right side
    447,072x = 284,773,007,089.38
  5. Step 5: Solve for x
    x = 284,773,007,089.38/447,072
  6. Step 6: Final answer
    x = 636,973.48

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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.