Finding the Fourth Proportional to 867,438.25, 1,197,190.49 and 499,843.87
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Solution
The fourth proportional to 867,438.25, 1,197,190.49 and 499,843.87 is: 689,856.98
Step by Step Solution
- Step 1: Write the proportion equation
867,438.25 : 1,197,190.49 = 499,843.87 : x - Step 2: Convert to fraction form
867,438.25/1,197,190.49 = 499,843.87/x - Step 3: Cross multiply
867,438.25x = 1,197,190.49 × 499,843.87 - Step 4: Simplify right side
867,438.25x = 598,408,334,088.85 - Step 5: Solve for x
x = 598,408,334,088.85/867,438.25 - Step 6: Final answer
x = 689,856.98
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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.