Finding the Fourth Proportional to 638,202.95, 880,720.08 and 351,723.04
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Solution
The fourth proportional to 638,202.95, 880,720.08 and 351,723.04 is: 485,377.80
Step by Step Solution
- Step 1: Write the proportion equation
638,202.95 : 880,720.08 = 351,723.04 : x - Step 2: Convert to fraction form
638,202.95/880,720.08 = 351,723.04/x - Step 3: Cross multiply
638,202.95x = 880,720.08 × 351,723.04 - Step 4: Simplify right side
638,202.95x = 309,769,542,168.03 - Step 5: Solve for x
x = 309,769,542,168.03/638,202.95 - Step 6: Final answer
x = 485,377.80
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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.