Finding the Fourth Proportional to 447,403.68, 671,138.28 and 127,549.44
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Solution
The fourth proportional to 447,403.68, 671,138.28 and 127,549.44 is: 191,333.50
Step by Step Solution
- Step 1: Write the proportion equation
447,403.68 : 671,138.28 = 127,549.44 : x - Step 2: Convert to fraction form
447,403.68/671,138.28 = 127,549.44/x - Step 3: Cross multiply
447,403.68x = 671,138.28 × 127,549.44 - Step 4: Simplify right side
447,403.68x = 85,603,311,776.56 - Step 5: Solve for x
x = 85,603,311,776.56/447,403.68 - Step 6: Final answer
x = 191,333.50
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1.5x scale
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.