Finding the Fourth Proportional to 753,088.20, 1,129,632.36 and 354,004.44
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Solution
The fourth proportional to 753,088.20, 1,129,632.36 and 354,004.44 is: 531,006.69
Step by Step Solution
- Step 1: Write the proportion equation
753,088.20 : 1,129,632.36 = 354,004.44 : x - Step 2: Convert to fraction form
753,088.20/1,129,632.36 = 354,004.44/x - Step 3: Cross multiply
753,088.20x = 1,129,632.36 × 354,004.44 - Step 4: Simplify right side
753,088.20x = 399,894,871,007.68 - Step 5: Solve for x
x = 399,894,871,007.68/753,088.20 - Step 6: Final answer
x = 531,006.69
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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.