Finding the Fourth Proportional to 2,389,865.45, 3,297,972.79 and 1,302,145.96
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Solution
The fourth proportional to 2,389,865.45, 3,297,972.79 and 1,302,145.96 is: 1,796,938.80
Step by Step Solution
- Step 1: Write the proportion equation
2,389,865.45 : 3,297,972.79 = 1,302,145.96 : x - Step 2: Convert to fraction form
2,389,865.45/3,297,972.79 = 1,302,145.96/x - Step 3: Cross multiply
2,389,865.45x = 3,297,972.79 × 1,302,145.96 - Step 4: Simplify right side
2,389,865.45x = 4,294,441,940,592.59 - Step 5: Solve for x
x = 4,294,441,940,592.59/2,389,865.45 - Step 6: Final answer
x = 1,796,938.80
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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.