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Finding the Fourth Proportional to 884,352.78, 1,326,375.14 and 285,313.88

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Solution

The fourth proportional to 884,352.78, 1,326,375.14 and 285,313.88 is: 427,921.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,352.78 : 1,326,375.14 = 285,313.88 : x
  2. Step 2: Convert to fraction form
    884,352.78/1,326,375.14 = 285,313.88/x
  3. Step 3: Cross multiply
    884,352.78x = 1,326,375.14 × 285,313.88
  4. Step 4: Simplify right side
    884,352.78x = 378,433,239,418.31
  5. Step 5: Solve for x
    x = 378,433,239,418.31/884,352.78
  6. Step 6: Final answer
    x = 427,921.13

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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.