Finding the Fourth Proportional to 1,611,891.60, 2,415,763.80 and 980,134.80
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Solution
The fourth proportional to 1,611,891.60, 2,415,763.80 and 980,134.80 is: 1,468,941.32
Step by Step Solution
- Step 1: Write the proportion equation
1,611,891.60 : 2,415,763.80 = 980,134.80 : x - Step 2: Convert to fraction form
1,611,891.60/2,415,763.80 = 980,134.80/x - Step 3: Cross multiply
1,611,891.60x = 2,415,763.80 × 980,134.80 - Step 4: Simplify right side
1,611,891.60x = 2,367,774,168,960.24 - Step 5: Solve for x
x = 2,367,774,168,960.24/1,611,891.60 - Step 6: Final answer
x = 1,468,941.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.