Finding the Fourth Proportional to 631,385.23, 947,313.12 and 378,846.97
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Solution
The fourth proportional to 631,385.23, 947,313.12 and 378,846.97 is: 568,411.62
Step by Step Solution
- Step 1: Write the proportion equation
631,385.23 : 947,313.12 = 378,846.97 : x - Step 2: Convert to fraction form
631,385.23/947,313.12 = 378,846.97/x - Step 3: Cross multiply
631,385.23x = 947,313.12 × 378,846.97 - Step 4: Simplify right side
631,385.23x = 358,886,700,416.68 - Step 5: Solve for x
x = 358,886,700,416.68/631,385.23 - Step 6: Final answer
x = 568,411.62
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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.