Finding the Fourth Proportional to 634,578.21, 875,709.77 and 362,642.99
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Solution
The fourth proportional to 634,578.21, 875,709.77 and 362,642.99 is: 500,442.65
Step by Step Solution
- Step 1: Write the proportion equation
634,578.21 : 875,709.77 = 362,642.99 : x - Step 2: Convert to fraction form
634,578.21/875,709.77 = 362,642.99/x - Step 3: Cross multiply
634,578.21x = 875,709.77 × 362,642.99 - Step 4: Simplify right side
634,578.21x = 317,570,003,173.25 - Step 5: Solve for x
x = 317,570,003,173.25/634,578.21 - Step 6: Final answer
x = 500,442.65
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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.