Finding the Fourth Proportional to 486,137.80, 729,206.70 and 314,895.70
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Solution
The fourth proportional to 486,137.80, 729,206.70 and 314,895.70 is: 472,343.55
Step by Step Solution
- Step 1: Write the proportion equation
486,137.80 : 729,206.70 = 314,895.70 : x - Step 2: Convert to fraction form
486,137.80/729,206.70 = 314,895.70/x - Step 3: Cross multiply
486,137.80x = 729,206.70 × 314,895.70 - Step 4: Simplify right side
486,137.80x = 229,624,054,241.19 - Step 5: Solve for x
x = 229,624,054,241.19/486,137.80 - Step 6: Final answer
x = 472,343.55
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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.