Finding the Fourth Proportional to 1,214,245.80, 1,821,368.70 and 1,183,141.80
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Solution
The fourth proportional to 1,214,245.80, 1,821,368.70 and 1,183,141.80 is: 1,774,712.70
Step by Step Solution
- Step 1: Write the proportion equation
1,214,245.80 : 1,821,368.70 = 1,183,141.80 : x - Step 2: Convert to fraction form
1,214,245.80/1,821,368.70 = 1,183,141.80/x - Step 3: Cross multiply
1,214,245.80x = 1,821,368.70 × 1,183,141.80 - Step 4: Simplify right side
1,214,245.80x = 2,154,937,442,181.66 - Step 5: Solve for x
x = 2,154,937,442,181.66/1,214,245.80 - Step 6: Final answer
x = 1,774,712.70
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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.