Finding the Fourth Proportional to 1,212,394.50, 1,673,174.88 and 668,645.96
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Solution
The fourth proportional to 1,212,394.50, 1,673,174.88 and 668,645.96 is: 922,770.28
Step by Step Solution
- Step 1: Write the proportion equation
1,212,394.50 : 1,673,174.88 = 668,645.96 : x - Step 2: Convert to fraction form
1,212,394.50/1,673,174.88 = 668,645.96/x - Step 3: Cross multiply
1,212,394.50x = 1,673,174.88 × 668,645.96 - Step 4: Simplify right side
1,212,394.50x = 1,118,761,615,519.61 - Step 5: Solve for x
x = 1,118,761,615,519.61/1,212,394.50 - Step 6: Final answer
x = 922,770.28
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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.