Finding the Fourth Proportional to 870,996.30, 1,306,493.84 and 272,008.79
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Solution
The fourth proportional to 870,996.30, 1,306,493.84 and 272,008.79 is: 408,012.99
Step by Step Solution
- Step 1: Write the proportion equation
870,996.30 : 1,306,493.84 = 272,008.79 : x - Step 2: Convert to fraction form
870,996.30/1,306,493.84 = 272,008.79/x - Step 3: Cross multiply
870,996.30x = 1,306,493.84 × 272,008.79 - Step 4: Simplify right side
870,996.30x = 355,377,808,560.85 - Step 5: Solve for x
x = 355,377,808,560.85/870,996.30 - Step 6: Final answer
x = 408,012.99
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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.