Finding the Fourth Proportional to 489,115.80, 734,038.20 and 252,336.60
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Solution
The fourth proportional to 489,115.80, 734,038.20 and 252,336.60 is: 378,692.95
Step by Step Solution
- Step 1: Write the proportion equation
489,115.80 : 734,038.20 = 252,336.60 : x - Step 2: Convert to fraction form
489,115.80/734,038.20 = 252,336.60/x - Step 3: Cross multiply
489,115.80x = 734,038.20 × 252,336.60 - Step 4: Simplify right side
489,115.80x = 185,224,703,658.12 - Step 5: Solve for x
x = 185,224,703,658.12/489,115.80 - Step 6: Final answer
x = 378,692.95
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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.