Finding the Fourth Proportional to 638,173.40, 880,674.86 and 351,693.81
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Solution
The fourth proportional to 638,173.40, 880,674.86 and 351,693.81 is: 485,335.02
Step by Step Solution
- Step 1: Write the proportion equation
638,173.40 : 880,674.86 = 351,693.81 : x - Step 2: Convert to fraction form
638,173.40/880,674.86 = 351,693.81/x - Step 3: Cross multiply
638,173.40x = 880,674.86 × 351,693.81 - Step 4: Simplify right side
638,173.40x = 309,727,897,763.85 - Step 5: Solve for x
x = 309,727,897,763.85/638,173.40 - Step 6: Final answer
x = 485,335.02
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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.