Finding the Fourth Proportional to 910,395.09, 1,256,157.66 and 523,135.69
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Solution
The fourth proportional to 910,395.09, 1,256,157.66 and 523,135.69 is: 721,819.47
Step by Step Solution
- Step 1: Write the proportion equation
910,395.09 : 1,256,157.66 = 523,135.69 : x - Step 2: Convert to fraction form
910,395.09/1,256,157.66 = 523,135.69/x - Step 3: Cross multiply
910,395.09x = 1,256,157.66 × 523,135.69 - Step 4: Simplify right side
910,395.09x = 657,140,904,212.89 - Step 5: Solve for x
x = 657,140,904,212.89/910,395.09 - Step 6: Final answer
x = 721,819.47
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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.