Finding the Fourth Proportional to 2,120,930.62, 3,180,985.34 and 824,080.79
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Solution
The fourth proportional to 2,120,930.62, 3,180,985.34 and 824,080.79 is: 1,235,961.65
Step by Step Solution
- Step 1: Write the proportion equation
2,120,930.62 : 3,180,985.34 = 824,080.79 : x - Step 2: Convert to fraction form
2,120,930.62/3,180,985.34 = 824,080.79/x - Step 3: Cross multiply
2,120,930.62x = 3,180,985.34 × 824,080.79 - Step 4: Simplify right side
2,120,930.62x = 2,621,388,911,965.62 - Step 5: Solve for x
x = 2,621,388,911,965.62/2,120,930.62 - Step 6: Final answer
x = 1,235,961.65
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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.