Finding the Fourth Proportional to 447,620.79, 617,716.66 and 243,673.18
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Solution
The fourth proportional to 447,620.79, 617,716.66 and 243,673.18 is: 336,268.98
Step by Step Solution
- Step 1: Write the proportion equation
447,620.79 : 617,716.66 = 243,673.18 : x - Step 2: Convert to fraction form
447,620.79/617,716.66 = 243,673.18/x - Step 3: Cross multiply
447,620.79x = 617,716.66 × 243,673.18 - Step 4: Simplify right side
447,620.79x = 150,520,982,881.18 - Step 5: Solve for x
x = 150,520,982,881.18/447,620.79 - Step 6: Final answer
x = 336,268.98
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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.