Finding the Fourth Proportional to 1,678,492.40, 2,518,788.36 and 681,220.40
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Solution
The fourth proportional to 1,678,492.40, 2,518,788.36 and 681,220.40 is: 1,022,256.65
Step by Step Solution
- Step 1: Write the proportion equation
1,678,492.40 : 2,518,788.36 = 681,220.40 : x - Step 2: Convert to fraction form
1,678,492.40/2,518,788.36 = 681,220.40/x - Step 3: Cross multiply
1,678,492.40x = 2,518,788.36 × 681,220.40 - Step 4: Simplify right side
1,678,492.40x = 1,715,850,014,114.54 - Step 5: Solve for x
x = 1,715,850,014,114.54/1,678,492.40 - Step 6: Final answer
x = 1,022,256.65
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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.