Finding the Fourth Proportional to 1,939,724.48, 2,909,407.21 and 914,819.74
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Solution
The fourth proportional to 1,939,724.48, 2,909,407.21 and 914,819.74 is: 1,372,144.94
Step by Step Solution
- Step 1: Write the proportion equation
1,939,724.48 : 2,909,407.21 = 914,819.74 : x - Step 2: Convert to fraction form
1,939,724.48/2,909,407.21 = 914,819.74/x - Step 3: Cross multiply
1,939,724.48x = 2,909,407.21 × 914,819.74 - Step 4: Simplify right side
1,939,724.48x = 2,661,583,137,845.76 - Step 5: Solve for x
x = 2,661,583,137,845.76/1,939,724.48 - Step 6: Final answer
x = 1,372,144.94
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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.