Finding the Fourth Proportional to 758,807.38, 1,138,334.60 and 354,403.99
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Solution
The fourth proportional to 758,807.38, 1,138,334.60 and 354,403.99 is: 531,663.68
Step by Step Solution
- Step 1: Write the proportion equation
758,807.38 : 1,138,334.60 = 354,403.99 : x - Step 2: Convert to fraction form
758,807.38/1,138,334.60 = 354,403.99/x - Step 3: Cross multiply
758,807.38x = 1,138,334.60 × 354,403.99 - Step 4: Simplify right side
758,807.38x = 403,430,324,195.05 - Step 5: Solve for x
x = 403,430,324,195.05/758,807.38 - Step 6: Final answer
x = 531,663.68
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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.