Finding the Fourth Proportional to 669,425.92, 923,813.76 and 367,622.08
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Solution
The fourth proportional to 669,425.92, 923,813.76 and 367,622.08 is: 507,321.76
Step by Step Solution
- Step 1: Write the proportion equation
669,425.92 : 923,813.76 = 367,622.08 : x - Step 2: Convert to fraction form
669,425.92/923,813.76 = 367,622.08/x - Step 3: Cross multiply
669,425.92x = 923,813.76 × 367,622.08 - Step 4: Simplify right side
669,425.92x = 339,614,335,983.82 - Step 5: Solve for x
x = 339,614,335,983.82/669,425.92 - Step 6: Final answer
x = 507,321.76
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1.5x scale
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.