Finding the Fourth Proportional to 1,398,975.40, 2,093,624.70 and 838,412.20
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Solution
The fourth proportional to 1,398,975.40, 2,093,624.70 and 838,412.20 is: 1,254,718.63
Step by Step Solution
- Step 1: Write the proportion equation
1,398,975.40 : 2,093,624.70 = 838,412.20 : x - Step 2: Convert to fraction form
1,398,975.40/2,093,624.70 = 838,412.20/x - Step 3: Cross multiply
1,398,975.40x = 2,093,624.70 × 838,412.20 - Step 4: Simplify right side
1,398,975.40x = 1,755,320,490,701.34 - Step 5: Solve for x
x = 1,755,320,490,701.34/1,398,975.40 - Step 6: Final answer
x = 1,254,718.63
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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.