Finding the Fourth Proportional to 422,807.09, 634,113.58 and 252,077.11
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Solution
The fourth proportional to 422,807.09, 634,113.58 and 252,077.11 is: 378,057.80
Step by Step Solution
- Step 1: Write the proportion equation
422,807.09 : 634,113.58 = 252,077.11 : x - Step 2: Convert to fraction form
422,807.09/634,113.58 = 252,077.11/x - Step 3: Cross multiply
422,807.09x = 634,113.58 × 252,077.11 - Step 4: Simplify right side
422,807.09x = 159,845,518,658.15 - Step 5: Solve for x
x = 159,845,518,658.15/422,807.09 - Step 6: Final answer
x = 378,057.80
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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.