Finding the Fourth Proportional to 771,213.60, 1,156,129.20 and 687,232.80
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Solution
The fourth proportional to 771,213.60, 1,156,129.20 and 687,232.80 is: 1,030,233.27
Step by Step Solution
- Step 1: Write the proportion equation
771,213.60 : 1,156,129.20 = 687,232.80 : x - Step 2: Convert to fraction form
771,213.60/1,156,129.20 = 687,232.80/x - Step 3: Cross multiply
771,213.60x = 1,156,129.20 × 687,232.80 - Step 4: Simplify right side
771,213.60x = 794,529,907,277.76 - Step 5: Solve for x
x = 794,529,907,277.76/771,213.60 - Step 6: Final answer
x = 1,030,233.27
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.