Finding the Fourth Proportional to 638,175.36, 880,688.10 and 351,705.96
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Solution
The fourth proportional to 638,175.36, 880,688.10 and 351,705.96 is: 485,357.59
Step by Step Solution
- Step 1: Write the proportion equation
638,175.36 : 880,688.10 = 351,705.96 : x - Step 2: Convert to fraction form
638,175.36/880,688.10 = 351,705.96/x - Step 3: Cross multiply
638,175.36x = 880,688.10 × 351,705.96 - Step 4: Simplify right side
638,175.36x = 309,743,253,671.08 - Step 5: Solve for x
x = 309,743,253,671.08/638,175.36 - Step 6: Final answer
x = 485,357.59
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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.