Finding the Fourth Proportional to 515,926.99, 711,940.21 and 289,528.75
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Solution
The fourth proportional to 515,926.99, 711,940.21 and 289,528.75 is: 399,527.77
Step by Step Solution
- Step 1: Write the proportion equation
515,926.99 : 711,940.21 = 289,528.75 : x - Step 2: Convert to fraction form
515,926.99/711,940.21 = 289,528.75/x - Step 3: Cross multiply
515,926.99x = 711,940.21 × 289,528.75 - Step 4: Simplify right side
515,926.99x = 206,127,159,076.04 - Step 5: Solve for x
x = 206,127,159,076.04/515,926.99 - Step 6: Final answer
x = 399,527.77
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.