Finding the Fourth Proportional to 425,716.44, 638,389.62 and 122,043.72
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Solution
The fourth proportional to 425,716.44, 638,389.62 and 122,043.72 is: 183,012.53
Step by Step Solution
- Step 1: Write the proportion equation
425,716.44 : 638,389.62 = 122,043.72 : x - Step 2: Convert to fraction form
425,716.44/638,389.62 = 122,043.72/x - Step 3: Cross multiply
425,716.44x = 638,389.62 × 122,043.72 - Step 4: Simplify right side
425,716.44x = 77,911,444,034.19 - Step 5: Solve for x
x = 77,911,444,034.19/425,716.44 - Step 6: Final answer
x = 183,012.53
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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.