Finding the Fourth Proportional to 920,154.21, 1,380,512.99 and 471,192.94
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Solution
The fourth proportional to 920,154.21, 1,380,512.99 and 471,192.94 is: 706,933.65
Step by Step Solution
- Step 1: Write the proportion equation
920,154.21 : 1,380,512.99 = 471,192.94 : x - Step 2: Convert to fraction form
920,154.21/1,380,512.99 = 471,192.94/x - Step 3: Cross multiply
920,154.21x = 1,380,512.99 × 471,192.94 - Step 4: Simplify right side
920,154.21x = 650,487,974,466.29 - Step 5: Solve for x
x = 650,487,974,466.29/920,154.21 - Step 6: Final answer
x = 706,933.65
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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.