Finding the Fourth Proportional to 4,931,403.53, 7,397,914.89 and 1,519,690.70
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Solution
The fourth proportional to 4,931,403.53, 7,397,914.89 and 1,519,690.70 is: 2,279,785.53
Step by Step Solution
- Step 1: Write the proportion equation
4,931,403.53 : 7,397,914.89 = 1,519,690.70 : x - Step 2: Convert to fraction form
4,931,403.53/7,397,914.89 = 1,519,690.70/x - Step 3: Cross multiply
4,931,403.53x = 7,397,914.89 × 1,519,690.70 - Step 4: Simplify right side
4,931,403.53x = 11,242,542,420,734.95 - Step 5: Solve for x
x = 11,242,542,420,734.95/4,931,403.53 - Step 6: Final answer
x = 2,279,785.53
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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.