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Finding the Fourth Proportional to 877,092, 1,315,644.48 and 212,244

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Solution

The fourth proportional to 877,092, 1,315,644.48 and 212,244 is: 318,367.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,092 : 1,315,644.48 = 212,244 : x
  2. Step 2: Convert to fraction form
    877,092/1,315,644.48 = 212,244/x
  3. Step 3: Cross multiply
    877,092x = 1,315,644.48 × 212,244
  4. Step 4: Simplify right side
    877,092x = 279,237,647,013.12
  5. Step 5: Solve for x
    x = 279,237,647,013.12/877,092
  6. Step 6: Final answer
    x = 318,367.57

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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.