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Finding the Fourth Proportional to 877,667, 1,316,504.82 and 212,819

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Solution

The fourth proportional to 877,667, 1,316,504.82 and 212,819 is: 319,229.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,667 : 1,316,504.82 = 212,819 : x
  2. Step 2: Convert to fraction form
    877,667/1,316,504.82 = 212,819/x
  3. Step 3: Cross multiply
    877,667x = 1,316,504.82 × 212,819
  4. Step 4: Simplify right side
    877,667x = 280,177,239,287.58
  5. Step 5: Solve for x
    x = 280,177,239,287.58/877,667
  6. Step 6: Final answer
    x = 319,229.55

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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.