Finding the Fourth Proportional to 643,644.24, 965,473.44 and 194,368.92
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Solution
The fourth proportional to 643,644.24, 965,473.44 and 194,368.92 is: 291,555.52
Step by Step Solution
- Step 1: Write the proportion equation
643,644.24 : 965,473.44 = 194,368.92 : x - Step 2: Convert to fraction form
643,644.24/965,473.44 = 194,368.92/x - Step 3: Cross multiply
643,644.24x = 965,473.44 × 194,368.92 - Step 4: Simplify right side
643,644.24x = 187,658,029,821.49 - Step 5: Solve for x
x = 187,658,029,821.49/643,644.24 - Step 6: Final answer
x = 291,555.52
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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.