Finding the Fourth Proportional to 500,074.42, 690,104.90 and 270,631.74
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Solution
The fourth proportional to 500,074.42, 690,104.90 and 270,631.74 is: 373,472.99
Step by Step Solution
- Step 1: Write the proportion equation
500,074.42 : 690,104.90 = 270,631.74 : x - Step 2: Convert to fraction form
500,074.42/690,104.90 = 270,631.74/x - Step 3: Cross multiply
500,074.42x = 690,104.90 × 270,631.74 - Step 4: Simplify right side
500,074.42x = 186,764,289,869.53 - Step 5: Solve for x
x = 186,764,289,869.53/500,074.42 - Step 6: Final answer
x = 373,472.99
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1.5x scale
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.