Finding the Fourth Proportional to 1,212,634.64, 1,673,148.08 and 689,304.18
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Solution
The fourth proportional to 1,212,634.64, 1,673,148.08 and 689,304.18 is: 951,076.22
Step by Step Solution
- Step 1: Write the proportion equation
1,212,634.64 : 1,673,148.08 = 689,304.18 : x - Step 2: Convert to fraction form
1,212,634.64/1,673,148.08 = 689,304.18/x - Step 3: Cross multiply
1,212,634.64x = 1,673,148.08 × 689,304.18 - Step 4: Simplify right side
1,212,634.64x = 1,153,307,965,302.97 - Step 5: Solve for x
x = 1,153,307,965,302.97/1,212,634.64 - Step 6: Final answer
x = 951,076.22
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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.