Finding the Fourth Proportional to 1,178,427.97, 1,626,184.84 and 720,309.60
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Solution
The fourth proportional to 1,178,427.97, 1,626,184.84 and 720,309.60 is: 993,999.28
Step by Step Solution
- Step 1: Write the proportion equation
1,178,427.97 : 1,626,184.84 = 720,309.60 : x - Step 2: Convert to fraction form
1,178,427.97/1,626,184.84 = 720,309.60/x - Step 3: Cross multiply
1,178,427.97x = 1,626,184.84 × 720,309.60 - Step 4: Simplify right side
1,178,427.97x = 1,171,356,551,626.46 - Step 5: Solve for x
x = 1,171,356,551,626.46/1,178,427.97 - Step 6: Final answer
x = 993,999.28
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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.