Finding the Fourth Proportional to 1,342,641.30, 2,015,063.55 and 1,332,143.70
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Solution
The fourth proportional to 1,342,641.30, 2,015,063.55 and 1,332,143.70 is: 1,999,308.54
Step by Step Solution
- Step 1: Write the proportion equation
1,342,641.30 : 2,015,063.55 = 1,332,143.70 : x - Step 2: Convert to fraction form
1,342,641.30/2,015,063.55 = 1,332,143.70/x - Step 3: Cross multiply
1,342,641.30x = 2,015,063.55 × 1,332,143.70 - Step 4: Simplify right side
1,342,641.30x = 2,684,354,213,232.13 - Step 5: Solve for x
x = 2,684,354,213,232.13/1,342,641.30 - Step 6: Final answer
x = 1,999,308.54
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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.