Finding the Fourth Proportional to 638,171.53, 880,695.17 and 351,710.07
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Solution
The fourth proportional to 638,171.53, 880,695.17 and 351,710.07 is: 485,370.07
Step by Step Solution
- Step 1: Write the proportion equation
638,171.53 : 880,695.17 = 351,710.07 : x - Step 2: Convert to fraction form
638,171.53/880,695.17 = 351,710.07/x - Step 3: Cross multiply
638,171.53x = 880,695.17 × 351,710.07 - Step 4: Simplify right side
638,171.53x = 309,749,362,090.21 - Step 5: Solve for x
x = 309,749,362,090.21/638,171.53 - Step 6: Final answer
x = 485,370.07
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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.