Finding the Fourth Proportional to 459,769.23, 689,310.24 and 317,207.70
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Solution
The fourth proportional to 459,769.23, 689,310.24 and 317,207.70 is: 475,574.49
Step by Step Solution
- Step 1: Write the proportion equation
459,769.23 : 689,310.24 = 317,207.70 : x - Step 2: Convert to fraction form
459,769.23/689,310.24 = 317,207.70/x - Step 3: Cross multiply
459,769.23x = 689,310.24 × 317,207.70 - Step 4: Simplify right side
459,769.23x = 218,654,519,242.44 - Step 5: Solve for x
x = 218,654,519,242.44/459,769.23 - Step 6: Final answer
x = 475,574.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.