Finding the Fourth Proportional to 3,286,276.80, 4,929,415.20 and 1,158,763.20
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Solution
The fourth proportional to 3,286,276.80, 4,929,415.20 and 1,158,763.20 is: 1,738,144.80
Step by Step Solution
- Step 1: Write the proportion equation
3,286,276.80 : 4,929,415.20 = 1,158,763.20 : x - Step 2: Convert to fraction form
3,286,276.80/4,929,415.20 = 1,158,763.20/x - Step 3: Cross multiply
3,286,276.80x = 4,929,415.20 × 1,158,763.20 - Step 4: Simplify right side
3,286,276.80x = 5,712,024,931,280.64 - Step 5: Solve for x
x = 5,712,024,931,280.64/3,286,276.80 - Step 6: Final answer
x = 1,738,144.80
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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.