Finding the Fourth Proportional to 642,197.13, 886,232.10 and 355,735.77
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Solution
The fourth proportional to 642,197.13, 886,232.10 and 355,735.77 is: 490,915.39
Step by Step Solution
- Step 1: Write the proportion equation
642,197.13 : 886,232.10 = 355,735.77 : x - Step 2: Convert to fraction form
642,197.13/886,232.10 = 355,735.77/x - Step 3: Cross multiply
642,197.13x = 886,232.10 × 355,735.77 - Step 4: Simplify right side
642,197.13x = 315,264,454,061.06 - Step 5: Solve for x
x = 315,264,454,061.06/642,197.13 - Step 6: Final answer
x = 490,915.39
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1.5x scale
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.