Finding the Fourth Proportional to 1,678,124.40, 2,517,551.12 and 613,164.80
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Solution
The fourth proportional to 1,678,124.40, 2,517,551.12 and 613,164.80 is: 919,880.39
Step by Step Solution
- Step 1: Write the proportion equation
1,678,124.40 : 2,517,551.12 = 613,164.80 : x - Step 2: Convert to fraction form
1,678,124.40/2,517,551.12 = 613,164.80/x - Step 3: Cross multiply
1,678,124.40x = 2,517,551.12 × 613,164.80 - Step 4: Simplify right side
1,678,124.40x = 1,543,673,728,984.58 - Step 5: Solve for x
x = 1,543,673,728,984.58/1,678,124.40 - Step 6: Final answer
x = 919,880.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.