Finding the Fourth Proportional to 1,490,539.45, 2,235,810.20 and 479,661.19
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Solution
The fourth proportional to 1,490,539.45, 2,235,810.20 and 479,661.19 is: 719,492.12
Step by Step Solution
- Step 1: Write the proportion equation
1,490,539.45 : 2,235,810.20 = 479,661.19 : x - Step 2: Convert to fraction form
1,490,539.45/2,235,810.20 = 479,661.19/x - Step 3: Cross multiply
1,490,539.45x = 2,235,810.20 × 479,661.19 - Step 4: Simplify right side
1,490,539.45x = 1,072,431,385,734.74 - Step 5: Solve for x
x = 1,072,431,385,734.74/1,490,539.45 - Step 6: Final answer
x = 719,492.12
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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.