Finding the Fourth Proportional to 2,860,715.88, 3,947,107.32 and 1,620,336.96
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Solution
The fourth proportional to 2,860,715.88, 3,947,107.32 and 1,620,336.96 is: 2,235,679.51
Step by Step Solution
- Step 1: Write the proportion equation
2,860,715.88 : 3,947,107.32 = 1,620,336.96 : x - Step 2: Convert to fraction form
2,860,715.88/3,947,107.32 = 1,620,336.96/x - Step 3: Cross multiply
2,860,715.88x = 3,947,107.32 × 1,620,336.96 - Step 4: Simplify right side
2,860,715.88x = 6,395,643,875,682.55 - Step 5: Solve for x
x = 6,395,643,875,682.55/2,860,715.88 - Step 6: Final answer
x = 2,235,679.51
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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.