Finding the Fourth Proportional to 665,625.70, 998,438.55 and 413,683.30
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Solution
The fourth proportional to 665,625.70, 998,438.55 and 413,683.30 is: 620,524.95
Step by Step Solution
- Step 1: Write the proportion equation
665,625.70 : 998,438.55 = 413,683.30 : x - Step 2: Convert to fraction form
665,625.70/998,438.55 = 413,683.30/x - Step 3: Cross multiply
665,625.70x = 998,438.55 × 413,683.30 - Step 4: Simplify right side
665,625.70x = 413,037,354,211.22 - Step 5: Solve for x
x = 413,037,354,211.22/665,625.70 - Step 6: Final answer
x = 620,524.95
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Similar ratio
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1.5x scale
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.