Finding the Fourth Proportional to 756,375.20, 1,134,562.80 and 686,391.20
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Solution
The fourth proportional to 756,375.20, 1,134,562.80 and 686,391.20 is: 1,029,586.80
Step by Step Solution
- Step 1: Write the proportion equation
756,375.20 : 1,134,562.80 = 686,391.20 : x - Step 2: Convert to fraction form
756,375.20/1,134,562.80 = 686,391.20/x - Step 3: Cross multiply
756,375.20x = 1,134,562.80 × 686,391.20 - Step 4: Simplify right side
756,375.20x = 778,753,921,767.36 - Step 5: Solve for x
x = 778,753,921,767.36/756,375.20 - Step 6: Final answer
x = 1,029,586.80
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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.