Finding the Fourth Proportional to 1,898,716.42, 2,620,231.50 and 1,039,330.99
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Solution
The fourth proportional to 1,898,716.42, 2,620,231.50 and 1,039,330.99 is: 1,434,278.32
Step by Step Solution
- Step 1: Write the proportion equation
1,898,716.42 : 2,620,231.50 = 1,039,330.99 : x - Step 2: Convert to fraction form
1,898,716.42/2,620,231.50 = 1,039,330.99/x - Step 3: Cross multiply
1,898,716.42x = 2,620,231.50 × 1,039,330.99 - Step 4: Simplify right side
1,898,716.42x = 2,723,287,798,924.19 - Step 5: Solve for x
x = 2,723,287,798,924.19/1,898,716.42 - Step 6: Final answer
x = 1,434,278.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.