Finding the Fourth Proportional to 656,183.70, 985,312.35 and 479,927.70
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Solution
The fourth proportional to 656,183.70, 985,312.35 and 479,927.70 is: 720,649.86
Step by Step Solution
- Step 1: Write the proportion equation
656,183.70 : 985,312.35 = 479,927.70 : x - Step 2: Convert to fraction form
656,183.70/985,312.35 = 479,927.70/x - Step 3: Cross multiply
656,183.70x = 985,312.35 × 479,927.70 - Step 4: Simplify right side
656,183.70x = 472,878,689,917.10 - Step 5: Solve for x
x = 472,878,689,917.10/656,183.70 - Step 6: Final answer
x = 720,649.86
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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.