Finding the Fourth Proportional to 2,987,304.29, 4,121,771.33 and 1,698,043.18
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Solution
The fourth proportional to 2,987,304.29, 4,121,771.33 and 1,698,043.18 is: 2,342,896.81
Step by Step Solution
- Step 1: Write the proportion equation
2,987,304.29 : 4,121,771.33 = 1,698,043.18 : x - Step 2: Convert to fraction form
2,987,304.29/4,121,771.33 = 1,698,043.18/x - Step 3: Cross multiply
2,987,304.29x = 4,121,771.33 × 1,698,043.18 - Step 4: Simplify right side
2,987,304.29x = 6,998,945,696,426.03 - Step 5: Solve for x
x = 6,998,945,696,426.03/2,987,304.29 - Step 6: Final answer
x = 2,342,896.81
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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.