Finding the Fourth Proportional to 1,663,765.26, 2,293,915.60 and 1,388,519.01
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Solution
The fourth proportional to 1,663,765.26, 2,293,915.60 and 1,388,519.01 is: 1,914,419.95
Step by Step Solution
- Step 1: Write the proportion equation
1,663,765.26 : 2,293,915.60 = 1,388,519.01 : x - Step 2: Convert to fraction form
1,663,765.26/2,293,915.60 = 1,388,519.01/x - Step 3: Cross multiply
1,663,765.26x = 2,293,915.60 × 1,388,519.01 - Step 4: Simplify right side
1,663,765.26x = 3,185,145,411,860.79 - Step 5: Solve for x
x = 3,185,145,411,860.79/1,663,765.26 - Step 6: Final answer
x = 1,914,419.95
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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.