Finding the Fourth Proportional to 408,027.70, 612,041.55 and 399,279.70
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Solution
The fourth proportional to 408,027.70, 612,041.55 and 399,279.70 is: 598,919.55
Step by Step Solution
- Step 1: Write the proportion equation
408,027.70 : 612,041.55 = 399,279.70 : x - Step 2: Convert to fraction form
408,027.70/612,041.55 = 399,279.70/x - Step 3: Cross multiply
408,027.70x = 612,041.55 × 399,279.70 - Step 4: Simplify right side
408,027.70x = 244,375,766,471.54 - Step 5: Solve for x
x = 244,375,766,471.54/408,027.70 - Step 6: Final answer
x = 598,919.55
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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.