Finding the Fourth Proportional to 638,348.15, 880,920.23 and 351,873.02
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Solution
The fourth proportional to 638,348.15, 880,920.23 and 351,873.02 is: 485,584.65
Step by Step Solution
- Step 1: Write the proportion equation
638,348.15 : 880,920.23 = 351,873.02 : x - Step 2: Convert to fraction form
638,348.15/880,920.23 = 351,873.02/x - Step 3: Cross multiply
638,348.15x = 880,920.23 × 351,873.02 - Step 4: Simplify right side
638,348.15x = 309,972,060,168.20 - Step 5: Solve for x
x = 309,972,060,168.20/638,348.15 - Step 6: Final answer
x = 485,584.65
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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.