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Finding the Fourth Proportional to 893,492.78, 1,339,951.01 and 294,311.48

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Solution

The fourth proportional to 893,492.78, 1,339,951.01 and 294,311.48 is: 441,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,492.78 : 1,339,951.01 = 294,311.48 : x
  2. Step 2: Convert to fraction form
    893,492.78/1,339,951.01 = 294,311.48/x
  3. Step 3: Cross multiply
    893,492.78x = 1,339,951.01 × 294,311.48
  4. Step 4: Simplify right side
    893,492.78x = 394,362,956,709.28
  5. Step 5: Solve for x
    x = 394,362,956,709.28/893,492.78
  6. Step 6: Final answer
    x = 441,372.30

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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.