Finding the Fourth Proportional to 638,133.48, 880,630.02 and 351,663.84
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Solution
The fourth proportional to 638,133.48, 880,630.02 and 351,663.84 is: 485,299.31
Step by Step Solution
- Step 1: Write the proportion equation
638,133.48 : 880,630.02 = 351,663.84 : x - Step 2: Convert to fraction form
638,133.48/880,630.02 = 351,663.84/x - Step 3: Cross multiply
638,133.48x = 880,630.02 × 351,663.84 - Step 4: Simplify right side
638,133.48x = 309,685,734,452.48 - Step 5: Solve for x
x = 309,685,734,452.48/638,133.48 - Step 6: Final answer
x = 485,299.31
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1.5x scale
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.