Finding the Fourth Proportional to 638,268.24, 880,805.76 and 351,788.48
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Solution
The fourth proportional to 638,268.24, 880,805.76 and 351,788.48 is: 485,465.67
Step by Step Solution
- Step 1: Write the proportion equation
638,268.24 : 880,805.76 = 351,788.48 : x - Step 2: Convert to fraction form
638,268.24/880,805.76 = 351,788.48/x - Step 3: Cross multiply
638,268.24x = 880,805.76 × 351,788.48 - Step 4: Simplify right side
638,268.24x = 309,857,319,485.65 - Step 5: Solve for x
x = 309,857,319,485.65/638,268.24 - Step 6: Final answer
x = 485,465.67
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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.