Finding the Fourth Proportional to 447,719.43, 617,832.16 and 243,769.74
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Solution
The fourth proportional to 447,719.43, 617,832.16 and 243,769.74 is: 336,390.99
Step by Step Solution
- Step 1: Write the proportion equation
447,719.43 : 617,832.16 = 243,769.74 : x - Step 2: Convert to fraction form
447,719.43/617,832.16 = 243,769.74/x - Step 3: Cross multiply
447,719.43x = 617,832.16 × 243,769.74 - Step 4: Simplify right side
447,719.43x = 150,608,782,080.54 - Step 5: Solve for x
x = 150,608,782,080.54/447,719.43 - Step 6: Final answer
x = 336,390.99
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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.