Finding the Fourth Proportional to 493,321.80, 739,658.70 and 193,621.80
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Solution
The fourth proportional to 493,321.80, 739,658.70 and 193,621.80 is: 290,305.53
Step by Step Solution
- Step 1: Write the proportion equation
493,321.80 : 739,658.70 = 193,621.80 : x - Step 2: Convert to fraction form
493,321.80/739,658.70 = 193,621.80/x - Step 3: Cross multiply
493,321.80x = 739,658.70 × 193,621.80 - Step 4: Simplify right side
493,321.80x = 143,214,048,879.66 - Step 5: Solve for x
x = 143,214,048,879.66/493,321.80 - Step 6: Final answer
x = 290,305.53
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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.