Finding the Fourth Proportional to 644,671.21, 965,678.05 and 377,622.11
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Solution
The fourth proportional to 644,671.21, 965,678.05 and 377,622.11 is: 565,654.82
Step by Step Solution
- Step 1: Write the proportion equation
644,671.21 : 965,678.05 = 377,622.11 : x - Step 2: Convert to fraction form
644,671.21/965,678.05 = 377,622.11/x - Step 3: Cross multiply
644,671.21x = 965,678.05 × 377,622.11 - Step 4: Simplify right side
644,671.21x = 364,661,377,049.24 - Step 5: Solve for x
x = 364,661,377,049.24/644,671.21 - Step 6: Final answer
x = 565,654.82
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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.