Finding the Fourth Proportional to 910,635.74, 1,256,841.86 and 543,136.44
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Solution
The fourth proportional to 910,635.74, 1,256,841.86 and 543,136.44 is: 749,626.42
Step by Step Solution
- Step 1: Write the proportion equation
910,635.74 : 1,256,841.86 = 543,136.44 : x - Step 2: Convert to fraction form
910,635.74/1,256,841.86 = 543,136.44/x - Step 3: Cross multiply
910,635.74x = 1,256,841.86 × 543,136.44 - Step 4: Simplify right side
910,635.74x = 682,636,613,483.38 - Step 5: Solve for x
x = 682,636,613,483.38/910,635.74 - Step 6: Final answer
x = 749,626.42
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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.