Finding the Fourth Proportional to 634,861.51, 876,122.27 and 348,379.09
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Solution
The fourth proportional to 634,861.51, 876,122.27 and 348,379.09 is: 480,770.49
Step by Step Solution
- Step 1: Write the proportion equation
634,861.51 : 876,122.27 = 348,379.09 : x - Step 2: Convert to fraction form
634,861.51/876,122.27 = 348,379.09/x - Step 3: Cross multiply
634,861.51x = 876,122.27 × 348,379.09 - Step 4: Simplify right side
634,861.51x = 305,222,679,151.33 - Step 5: Solve for x
x = 305,222,679,151.33/634,861.51 - Step 6: Final answer
x = 480,770.49
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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.