Finding the Fourth Proportional to 491,309.52, 678,088.98 and 284,548.08
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Solution
The fourth proportional to 491,309.52, 678,088.98 and 284,548.08 is: 392,723.75
Step by Step Solution
- Step 1: Write the proportion equation
491,309.52 : 678,088.98 = 284,548.08 : x - Step 2: Convert to fraction form
491,309.52/678,088.98 = 284,548.08/x - Step 3: Cross multiply
491,309.52x = 678,088.98 × 284,548.08 - Step 4: Simplify right side
491,309.52x = 192,948,917,328.16 - Step 5: Solve for x
x = 192,948,917,328.16/491,309.52 - Step 6: Final answer
x = 392,723.75
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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.