Finding the Fourth Proportional to 878,563.40, 1,212,492.66 and 496,658.12
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Solution
The fourth proportional to 878,563.40, 1,212,492.66 and 496,658.12 is: 685,430.70
Step by Step Solution
- Step 1: Write the proportion equation
878,563.40 : 1,212,492.66 = 496,658.12 : x - Step 2: Convert to fraction form
878,563.40/1,212,492.66 = 496,658.12/x - Step 3: Cross multiply
878,563.40x = 1,212,492.66 × 496,658.12 - Step 4: Simplify right side
878,563.40x = 602,194,325,029.40 - Step 5: Solve for x
x = 602,194,325,029.40/878,563.40 - Step 6: Final answer
x = 685,430.70
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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.