Finding the Fourth Proportional to 447,509.69, 671,161.99 and 127,655.49
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Solution
The fourth proportional to 447,509.69, 671,161.99 and 127,655.49 is: 191,453.98
Step by Step Solution
- Step 1: Write the proportion equation
447,509.69 : 671,161.99 = 127,655.49 : x - Step 2: Convert to fraction form
447,509.69/671,161.99 = 127,655.49/x - Step 3: Cross multiply
447,509.69x = 671,161.99 × 127,655.49 - Step 4: Simplify right side
447,509.69x = 85,677,512,702.83 - Step 5: Solve for x
x = 85,677,512,702.83/447,509.69 - Step 6: Final answer
x = 191,453.98
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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.