Finding the Fourth Proportional to 878,722.80, 1,318,084.20 and 524,137.20
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Solution
The fourth proportional to 878,722.80, 1,318,084.20 and 524,137.20 is: 786,205.80
Step by Step Solution
- Step 1: Write the proportion equation
878,722.80 : 1,318,084.20 = 524,137.20 : x - Step 2: Convert to fraction form
878,722.80/1,318,084.20 = 524,137.20/x - Step 3: Cross multiply
878,722.80x = 1,318,084.20 × 524,137.20 - Step 4: Simplify right side
878,722.80x = 690,856,961,952.24 - Step 5: Solve for x
x = 690,856,961,952.24/878,722.80 - Step 6: Final answer
x = 786,205.80
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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.