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Finding the Fourth Proportional to 641,063.52, 884,608.14 and 354,577.44

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Solution

The fourth proportional to 641,063.52, 884,608.14 and 354,577.44 is: 489,283.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,063.52 : 884,608.14 = 354,577.44 : x
  2. Step 2: Convert to fraction form
    641,063.52/884,608.14 = 354,577.44/x
  3. Step 3: Cross multiply
    641,063.52x = 884,608.14 × 354,577.44
  4. Step 4: Simplify right side
    641,063.52x = 313,662,089,684.36
  5. Step 5: Solve for x
    x = 313,662,089,684.36/641,063.52
  6. Step 6: Final answer
    x = 489,283.95

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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.