Finding the Fourth Proportional to 870,871.36, 1,306,355.70 and 271,915.24
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Solution
The fourth proportional to 870,871.36, 1,306,355.70 and 271,915.24 is: 407,888.05
Step by Step Solution
- Step 1: Write the proportion equation
870,871.36 : 1,306,355.70 = 271,915.24 : x - Step 2: Convert to fraction form
870,871.36/1,306,355.70 = 271,915.24/x - Step 3: Cross multiply
870,871.36x = 1,306,355.70 × 271,915.24 - Step 4: Simplify right side
870,871.36x = 355,218,023,690.87 - Step 5: Solve for x
x = 355,218,023,690.87/870,871.36 - Step 6: Final answer
x = 407,888.05
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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.