Finding the Fourth Proportional to 2,643,639.03, 3,648,244.10 and 1,436,415.03
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Solution
The fourth proportional to 2,643,639.03, 3,648,244.10 and 1,436,415.03 is: 1,982,264.82
Step by Step Solution
- Step 1: Write the proportion equation
2,643,639.03 : 3,648,244.10 = 1,436,415.03 : x - Step 2: Convert to fraction form
2,643,639.03/3,648,244.10 = 1,436,415.03/x - Step 3: Cross multiply
2,643,639.03x = 3,648,244.10 × 1,436,415.03 - Step 4: Simplify right side
2,643,639.03x = 5,240,392,651,166.75 - Step 5: Solve for x
x = 5,240,392,651,166.75/2,643,639.03 - Step 6: Final answer
x = 1,982,264.82
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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.