Finding the Fourth Proportional to 2,287,478.49, 3,431,242.41 and 690,055.44
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Solution
The fourth proportional to 2,287,478.49, 3,431,242.41 and 690,055.44 is: 1,035,090.60
Step by Step Solution
- Step 1: Write the proportion equation
2,287,478.49 : 3,431,242.41 = 690,055.44 : x - Step 2: Convert to fraction form
2,287,478.49/3,431,242.41 = 690,055.44/x - Step 3: Cross multiply
2,287,478.49x = 3,431,242.41 × 690,055.44 - Step 4: Simplify right side
2,287,478.49x = 2,367,747,490,979.21 - Step 5: Solve for x
x = 2,367,747,490,979.21/2,287,478.49 - Step 6: Final answer
x = 1,035,090.60
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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.