Finding the Fourth Proportional to 1,998,072.39, 2,757,592.44 and 1,310,322.99
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Solution
The fourth proportional to 1,998,072.39, 2,757,592.44 and 1,310,322.99 is: 1,808,411.34
Step by Step Solution
- Step 1: Write the proportion equation
1,998,072.39 : 2,757,592.44 = 1,310,322.99 : x - Step 2: Convert to fraction form
1,998,072.39/2,757,592.44 = 1,310,322.99/x - Step 3: Cross multiply
1,998,072.39x = 2,757,592.44 × 1,310,322.99 - Step 4: Simplify right side
1,998,072.39x = 3,613,336,771,182.20 - Step 5: Solve for x
x = 3,613,336,771,182.20/1,998,072.39 - Step 6: Final answer
x = 1,808,411.34
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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.