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Finding the Fourth Proportional to 842,620, 1,264,148.88 and 251,644

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Solution

The fourth proportional to 842,620, 1,264,148.88 and 251,644 is: 377,531.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,620 : 1,264,148.88 = 251,644 : x
  2. Step 2: Convert to fraction form
    842,620/1,264,148.88 = 251,644/x
  3. Step 3: Cross multiply
    842,620x = 1,264,148.88 × 251,644
  4. Step 4: Simplify right side
    842,620x = 318,115,480,758.72
  5. Step 5: Solve for x
    x = 318,115,480,758.72/842,620
  6. Step 6: Final answer
    x = 377,531.37

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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.