Finding the Fourth Proportional to 528,391.28, 792,635.12 and 149,317.49
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Solution
The fourth proportional to 528,391.28, 792,635.12 and 149,317.49 is: 223,989.86
Step by Step Solution
- Step 1: Write the proportion equation
528,391.28 : 792,635.12 = 149,317.49 : x - Step 2: Convert to fraction form
528,391.28/792,635.12 = 149,317.49/x - Step 3: Cross multiply
528,391.28x = 792,635.12 × 149,317.49 - Step 4: Simplify right side
528,391.28x = 118,354,288,399.19 - Step 5: Solve for x
x = 118,354,288,399.19/528,391.28 - Step 6: Final answer
x = 223,989.86
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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.