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Finding the Fourth Proportional to 626,392.44, 938,751.12 and 326,242.89

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Solution

The fourth proportional to 626,392.44, 938,751.12 and 326,242.89 is: 488,928.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,392.44 : 938,751.12 = 326,242.89 : x
  2. Step 2: Convert to fraction form
    626,392.44/938,751.12 = 326,242.89/x
  3. Step 3: Cross multiply
    626,392.44x = 938,751.12 × 326,242.89
  4. Step 4: Simplify right side
    626,392.44x = 306,260,878,379.54
  5. Step 5: Solve for x
    x = 306,260,878,379.54/626,392.44
  6. Step 6: Final answer
    x = 488,928.12

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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.