Finding the Fourth Proportional to 565,909.12, 780,969.36 and 311,266.99
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Solution
The fourth proportional to 565,909.12, 780,969.36 and 311,266.99 is: 429,556.57
Step by Step Solution
- Step 1: Write the proportion equation
565,909.12 : 780,969.36 = 311,266.99 : x - Step 2: Convert to fraction form
565,909.12/780,969.36 = 311,266.99/x - Step 3: Cross multiply
565,909.12x = 780,969.36 × 311,266.99 - Step 4: Simplify right side
565,909.12x = 243,089,981,969.43 - Step 5: Solve for x
x = 243,089,981,969.43/565,909.12 - Step 6: Final answer
x = 429,556.57
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.