Finding the Fourth Proportional to 638,149.07, 880,643.79 and 351,669.08
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Solution
The fourth proportional to 638,149.07, 880,643.79 and 351,669.08 is: 485,302.27
Step by Step Solution
- Step 1: Write the proportion equation
638,149.07 : 880,643.79 = 351,669.08 : x - Step 2: Convert to fraction form
638,149.07/880,643.79 = 351,669.08/x - Step 3: Cross multiply
638,149.07x = 880,643.79 × 351,669.08 - Step 4: Simplify right side
638,149.07x = 309,695,187,033.79 - Step 5: Solve for x
x = 309,695,187,033.79/638,149.07 - Step 6: Final answer
x = 485,302.27
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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.