Finding the Fourth Proportional to 528,406.75, 729,201.36 and 302,057.11
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Solution
The fourth proportional to 528,406.75, 729,201.36 and 302,057.11 is: 416,838.84
Step by Step Solution
- Step 1: Write the proportion equation
528,406.75 : 729,201.36 = 302,057.11 : x - Step 2: Convert to fraction form
528,406.75/729,201.36 = 302,057.11/x - Step 3: Cross multiply
528,406.75x = 729,201.36 × 302,057.11 - Step 4: Simplify right side
528,406.75x = 220,260,455,409.67 - Step 5: Solve for x
x = 220,260,455,409.67/528,406.75 - Step 6: Final answer
x = 416,838.84
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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.