Finding the Fourth Proportional to 556,119.20, 834,178.80 and 486,135.20
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Solution
The fourth proportional to 556,119.20, 834,178.80 and 486,135.20 is: 729,202.80
Step by Step Solution
- Step 1: Write the proportion equation
556,119.20 : 834,178.80 = 486,135.20 : x - Step 2: Convert to fraction form
556,119.20/834,178.80 = 486,135.20/x - Step 3: Cross multiply
556,119.20x = 834,178.80 × 486,135.20 - Step 4: Simplify right side
556,119.20x = 405,523,677,773.76 - Step 5: Solve for x
x = 405,523,677,773.76/556,119.20 - Step 6: Final answer
x = 729,202.80
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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.