Finding the Fourth Proportional to 542,823.80, 814,235.70 and 408,104.60
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Solution
The fourth proportional to 542,823.80, 814,235.70 and 408,104.60 is: 612,156.90
Step by Step Solution
- Step 1: Write the proportion equation
542,823.80 : 814,235.70 = 408,104.60 : x - Step 2: Convert to fraction form
542,823.80/814,235.70 = 408,104.60/x - Step 3: Cross multiply
542,823.80x = 814,235.70 × 408,104.60 - Step 4: Simplify right side
542,823.80x = 332,293,334,654.22 - Step 5: Solve for x
x = 332,293,334,654.22/542,823.80 - Step 6: Final answer
x = 612,156.90
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1.5x scale
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.