Finding the Fourth Proportional to 489,475.50, 734,125.65 and 311,453.70
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Solution
The fourth proportional to 489,475.50, 734,125.65 and 311,453.70 is: 467,124.81
Step by Step Solution
- Step 1: Write the proportion equation
489,475.50 : 734,125.65 = 311,453.70 : x - Step 2: Convert to fraction form
489,475.50/734,125.65 = 311,453.70/x - Step 3: Cross multiply
489,475.50x = 734,125.65 × 311,453.70 - Step 4: Simplify right side
489,475.50x = 228,646,149,957.41 - Step 5: Solve for x
x = 228,646,149,957.41/489,475.50 - Step 6: Final answer
x = 467,124.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.