Finding the Fourth Proportional to 1,979,154.56, 2,729,824.99 and 1,816,336.96
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Solution
The fourth proportional to 1,979,154.56, 2,729,824.99 and 1,816,336.96 is: 2,505,252.57
Step by Step Solution
- Step 1: Write the proportion equation
1,979,154.56 : 2,729,824.99 = 1,816,336.96 : x - Step 2: Convert to fraction form
1,979,154.56/2,729,824.99 = 1,816,336.96/x - Step 3: Cross multiply
1,979,154.56x = 2,729,824.99 × 1,816,336.96 - Step 4: Simplify right side
1,979,154.56x = 4,958,282,037,875.39 - Step 5: Solve for x
x = 4,958,282,037,875.39/1,979,154.56 - Step 6: Final answer
x = 2,505,252.57
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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.