Finding the Fourth Proportional to 641,725.76, 885,591.99 and 351,332.42
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Solution
The fourth proportional to 641,725.76, 885,591.99 and 351,332.42 is: 484,844.45
Step by Step Solution
- Step 1: Write the proportion equation
641,725.76 : 885,591.99 = 351,332.42 : x - Step 2: Convert to fraction form
641,725.76/885,591.99 = 351,332.42/x - Step 3: Cross multiply
641,725.76x = 885,591.99 × 351,332.42 - Step 4: Simplify right side
641,725.76x = 311,137,175,222.65 - Step 5: Solve for x
x = 311,137,175,222.65/641,725.76 - Step 6: Final answer
x = 484,844.45
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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.