Finding the Fourth Proportional to 683,311.28, 1,024,077.87 and 278,031.18
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Solution
The fourth proportional to 683,311.28, 1,024,077.87 and 278,031.18 is: 416,685.03
Step by Step Solution
- Step 1: Write the proportion equation
683,311.28 : 1,024,077.87 = 278,031.18 : x - Step 2: Convert to fraction form
683,311.28/1,024,077.87 = 278,031.18/x - Step 3: Cross multiply
683,311.28x = 1,024,077.87 × 278,031.18 - Step 4: Simplify right side
683,311.28x = 284,725,578,607.99 - Step 5: Solve for x
x = 284,725,578,607.99/683,311.28 - Step 6: Final answer
x = 416,685.03
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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.