Finding the Fourth Proportional to 1,498,129.70, 2,247,194.55 and 1,311,505.70
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Solution
The fourth proportional to 1,498,129.70, 2,247,194.55 and 1,311,505.70 is: 1,967,258.55
Step by Step Solution
- Step 1: Write the proportion equation
1,498,129.70 : 2,247,194.55 = 1,311,505.70 : x - Step 2: Convert to fraction form
1,498,129.70/2,247,194.55 = 1,311,505.70/x - Step 3: Cross multiply
1,498,129.70x = 2,247,194.55 × 1,311,505.70 - Step 4: Simplify right side
1,498,129.70x = 2,947,208,461,333.93 - Step 5: Solve for x
x = 2,947,208,461,333.93/1,498,129.70 - Step 6: Final answer
x = 1,967,258.55
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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.