Finding the Fourth Proportional to 713,408.87, 984,503.97 and 391,112.05
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Solution
The fourth proportional to 713,408.87, 984,503.97 and 391,112.05 is: 539,734.48
Step by Step Solution
- Step 1: Write the proportion equation
713,408.87 : 984,503.97 = 391,112.05 : x - Step 2: Convert to fraction form
713,408.87/984,503.97 = 391,112.05/x - Step 3: Cross multiply
713,408.87x = 984,503.97 × 391,112.05 - Step 4: Simplify right side
713,408.87x = 385,051,363,478.58 - Step 5: Solve for x
x = 385,051,363,478.58/713,408.87 - Step 6: Final answer
x = 539,734.48
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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.