Finding the Fourth Proportional to 2,990,930.40, 4,486,395.60 and 1,556,039.70
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Solution
The fourth proportional to 2,990,930.40, 4,486,395.60 and 1,556,039.70 is: 2,334,059.55
Step by Step Solution
- Step 1: Write the proportion equation
2,990,930.40 : 4,486,395.60 = 1,556,039.70 : x - Step 2: Convert to fraction form
2,990,930.40/4,486,395.60 = 1,556,039.70/x - Step 3: Cross multiply
2,990,930.40x = 4,486,395.60 × 1,556,039.70 - Step 4: Simplify right side
2,990,930.40x = 6,981,009,663,505.32 - Step 5: Solve for x
x = 6,981,009,663,505.32/2,990,930.40 - Step 6: Final answer
x = 2,334,059.55
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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.