Finding the Fourth Proportional to 4,654,346.40, 6,981,519.60 and 3,219,455.70
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Solution
The fourth proportional to 4,654,346.40, 6,981,519.60 and 3,219,455.70 is: 4,829,183.55
Step by Step Solution
- Step 1: Write the proportion equation
4,654,346.40 : 6,981,519.60 = 3,219,455.70 : x - Step 2: Convert to fraction form
4,654,346.40/6,981,519.60 = 3,219,455.70/x - Step 3: Cross multiply
4,654,346.40x = 6,981,519.60 × 3,219,455.70 - Step 4: Simplify right side
4,654,346.40x = 22,476,693,070,881.72 - Step 5: Solve for x
x = 22,476,693,070,881.72/4,654,346.40 - Step 6: Final answer
x = 4,829,183.55
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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.