Finding the Fourth Proportional to 1,190,421.14, 1,783,765.46 and 1,012,195.22
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Solution
The fourth proportional to 1,190,421.14, 1,783,765.46 and 1,012,195.22 is: 1,516,705.99
Step by Step Solution
- Step 1: Write the proportion equation
1,190,421.14 : 1,783,765.46 = 1,012,195.22 : x - Step 2: Convert to fraction form
1,190,421.14/1,783,765.46 = 1,012,195.22/x - Step 3: Cross multiply
1,190,421.14x = 1,783,765.46 × 1,012,195.22 - Step 4: Simplify right side
1,190,421.14x = 1,805,518,872,213.10 - Step 5: Solve for x
x = 1,805,518,872,213.10/1,190,421.14 - Step 6: Final answer
x = 1,516,705.99
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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.