Finding the Fourth Proportional to 638,380.08, 880,946.82 and 351,900.09
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Solution
The fourth proportional to 638,380.08, 880,946.82 and 351,900.09 is: 485,612.37
Step by Step Solution
- Step 1: Write the proportion equation
638,380.08 : 880,946.82 = 351,900.09 : x - Step 2: Convert to fraction form
638,380.08/880,946.82 = 351,900.09/x - Step 3: Cross multiply
638,380.08x = 880,946.82 × 351,900.09 - Step 4: Simplify right side
638,380.08x = 310,005,265,243.21 - Step 5: Solve for x
x = 310,005,265,243.21/638,380.08 - Step 6: Final answer
x = 485,612.37
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1.5x scale
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.