Finding the Fourth Proportional to 1,221,044.67, 1,684,928.79 and 677,170.44
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Solution
The fourth proportional to 1,221,044.67, 1,684,928.79 and 677,170.44 is: 934,432.62
Step by Step Solution
- Step 1: Write the proportion equation
1,221,044.67 : 1,684,928.79 = 677,170.44 : x - Step 2: Convert to fraction form
1,221,044.67/1,684,928.79 = 677,170.44/x - Step 3: Cross multiply
1,221,044.67x = 1,684,928.79 × 677,170.44 - Step 4: Simplify right side
1,221,044.67x = 1,140,983,970,092.97 - Step 5: Solve for x
x = 1,140,983,970,092.97/1,221,044.67 - Step 6: Final answer
x = 934,432.62
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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.