Finding the Fourth Proportional to 565,911.12, 780,972.12 and 311,268.99
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Solution
The fourth proportional to 565,911.12, 780,972.12 and 311,268.99 is: 429,559.33
Step by Step Solution
- Step 1: Write the proportion equation
565,911.12 : 780,972.12 = 311,268.99 : x - Step 2: Convert to fraction form
565,911.12/780,972.12 = 311,268.99/x - Step 3: Cross multiply
565,911.12x = 780,972.12 × 311,268.99 - Step 4: Simplify right side
565,911.12x = 243,092,403,010.56 - Step 5: Solve for x
x = 243,092,403,010.56/565,911.12 - Step 6: Final answer
x = 429,559.33
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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.