Finding the Fourth Proportional to 1,220,204.54, 1,683,879.35 and 668,919.26
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Solution
The fourth proportional to 1,220,204.54, 1,683,879.35 and 668,919.26 is: 923,106.97
Step by Step Solution
- Step 1: Write the proportion equation
1,220,204.54 : 1,683,879.35 = 668,919.26 : x - Step 2: Convert to fraction form
1,220,204.54/1,683,879.35 = 668,919.26/x - Step 3: Cross multiply
1,220,204.54x = 1,683,879.35 × 668,919.26 - Step 4: Simplify right side
1,220,204.54x = 1,126,379,316,967.29 - Step 5: Solve for x
x = 1,126,379,316,967.29/1,220,204.54 - Step 6: Final answer
x = 923,106.97
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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.