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Finding the Fourth Proportional to 793,654.40, 1,095,297.72 and 449,486

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Solution

The fourth proportional to 793,654.40, 1,095,297.72 and 449,486 is: 620,321.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    793,654.40 : 1,095,297.72 = 449,486 : x
  2. Step 2: Convert to fraction form
    793,654.40/1,095,297.72 = 449,486/x
  3. Step 3: Cross multiply
    793,654.40x = 1,095,297.72 × 449,486
  4. Step 4: Simplify right side
    793,654.40x = 492,320,990,971.92
  5. Step 5: Solve for x
    x = 492,320,990,971.92/793,654.40
  6. Step 6: Final answer
    x = 620,321.63

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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.