Finding the Fourth Proportional to 408,461.70, 612,692.55 and 198,509.70
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Solution
The fourth proportional to 408,461.70, 612,692.55 and 198,509.70 is: 297,764.55
Step by Step Solution
- Step 1: Write the proportion equation
408,461.70 : 612,692.55 = 198,509.70 : x - Step 2: Convert to fraction form
408,461.70/612,692.55 = 198,509.70/x - Step 3: Cross multiply
408,461.70x = 612,692.55 × 198,509.70 - Step 4: Simplify right side
408,461.70x = 121,625,414,292.74 - Step 5: Solve for x
x = 121,625,414,292.74/408,461.70 - Step 6: Final answer
x = 297,764.55
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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.