Finding the Fourth Proportional to 1,248,620.46, 1,722,674.49 and 812,838.84
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Solution
The fourth proportional to 1,248,620.46, 1,722,674.49 and 812,838.84 is: 1,121,443.05
Step by Step Solution
- Step 1: Write the proportion equation
1,248,620.46 : 1,722,674.49 = 812,838.84 : x - Step 2: Convert to fraction form
1,248,620.46/1,722,674.49 = 812,838.84/x - Step 3: Cross multiply
1,248,620.46x = 1,722,674.49 × 812,838.84 - Step 4: Simplify right side
1,248,620.46x = 1,400,256,734,149.19 - Step 5: Solve for x
x = 1,400,256,734,149.19/1,248,620.46 - Step 6: Final answer
x = 1,121,443.05
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.