Finding the Fourth Proportional to 641,731.07, 885,599.36 and 351,337.79
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Solution
The fourth proportional to 641,731.07, 885,599.36 and 351,337.79 is: 484,851.89
Step by Step Solution
- Step 1: Write the proportion equation
641,731.07 : 885,599.36 = 351,337.79 : x - Step 2: Convert to fraction form
641,731.07/885,599.36 = 351,337.79/x - Step 3: Cross multiply
641,731.07x = 885,599.36 × 351,337.79 - Step 4: Simplify right side
641,731.07x = 311,144,521,967.81 - Step 5: Solve for x
x = 311,144,521,967.81/641,731.07 - Step 6: Final answer
x = 484,851.89
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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.