Finding the Fourth Proportional to 791,566.20, 1,187,349.30 and 318,007.80
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Solution
The fourth proportional to 791,566.20, 1,187,349.30 and 318,007.80 is: 477,011.70
Step by Step Solution
- Step 1: Write the proportion equation
791,566.20 : 1,187,349.30 = 318,007.80 : x - Step 2: Convert to fraction form
791,566.20/1,187,349.30 = 318,007.80/x - Step 3: Cross multiply
791,566.20x = 1,187,349.30 × 318,007.80 - Step 4: Simplify right side
791,566.20x = 377,586,338,724.54 - Step 5: Solve for x
x = 377,586,338,724.54/791,566.20 - Step 6: Final answer
x = 477,011.70
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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.