Finding the Fourth Proportional to 638,225.52, 880,771.60 and 351,756.08
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Solution
The fourth proportional to 638,225.52, 880,771.60 and 351,756.08 is: 485,434.62
Step by Step Solution
- Step 1: Write the proportion equation
638,225.52 : 880,771.60 = 351,756.08 : x - Step 2: Convert to fraction form
638,225.52/880,771.60 = 351,756.08/x - Step 3: Cross multiply
638,225.52x = 880,771.60 × 351,756.08 - Step 4: Simplify right side
638,225.52x = 309,816,765,391.33 - Step 5: Solve for x
x = 309,816,765,391.33/638,225.52 - Step 6: Final answer
x = 485,434.62
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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.