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Finding the Fourth Proportional to 479,893.50, 662,253.03 and 278,702.46

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Solution

The fourth proportional to 479,893.50, 662,253.03 and 278,702.46 is: 384,609.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,893.50 : 662,253.03 = 278,702.46 : x
  2. Step 2: Convert to fraction form
    479,893.50/662,253.03 = 278,702.46/x
  3. Step 3: Cross multiply
    479,893.50x = 662,253.03 × 278,702.46
  4. Step 4: Simplify right side
    479,893.50x = 184,571,548,603.45
  5. Step 5: Solve for x
    x = 184,571,548,603.45/479,893.50
  6. Step 6: Final answer
    x = 384,609.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.