Finding the Fourth Proportional to 426,450.42, 639,678.60 and 292,925.97
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Solution
The fourth proportional to 426,450.42, 639,678.60 and 292,925.97 is: 439,391.00
Step by Step Solution
- Step 1: Write the proportion equation
426,450.42 : 639,678.60 = 292,925.97 : x - Step 2: Convert to fraction form
426,450.42/639,678.60 = 292,925.97/x - Step 3: Cross multiply
426,450.42x = 639,678.60 × 292,925.97 - Step 4: Simplify right side
426,450.42x = 187,378,474,393.24 - Step 5: Solve for x
x = 187,378,474,393.24/426,450.42 - Step 6: Final answer
x = 439,391.00
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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.