Finding the Fourth Proportional to 1,212,072.79, 1,672,673.37 and 668,228.06
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Solution
The fourth proportional to 1,212,072.79, 1,672,673.37 and 668,228.06 is: 922,161.84
Step by Step Solution
- Step 1: Write the proportion equation
1,212,072.79 : 1,672,673.37 = 668,228.06 : x - Step 2: Convert to fraction form
1,212,072.79/1,672,673.37 = 668,228.06/x - Step 3: Cross multiply
1,212,072.79x = 1,672,673.37 × 668,228.06 - Step 4: Simplify right side
1,212,072.79x = 1,117,727,272,685.40 - Step 5: Solve for x
x = 1,117,727,272,685.40/1,212,072.79 - Step 6: Final answer
x = 922,161.84
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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.