Finding the Fourth Proportional to 642,205.49, 886,263.57 and 355,752.23
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Solution
The fourth proportional to 642,205.49, 886,263.57 and 355,752.23 is: 490,949.15
Step by Step Solution
- Step 1: Write the proportion equation
642,205.49 : 886,263.57 = 355,752.23 : x - Step 2: Convert to fraction form
642,205.49/886,263.57 = 355,752.23/x - Step 3: Cross multiply
642,205.49x = 886,263.57 × 355,752.23 - Step 4: Simplify right side
642,205.49x = 315,290,236,963.94 - Step 5: Solve for x
x = 315,290,236,963.94/642,205.49 - Step 6: Final answer
x = 490,949.15
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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.