Finding the Fourth Proportional to 515,980.99, 711,976.66 and 289,582.75
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Solution
The fourth proportional to 515,980.99, 711,976.66 and 289,582.75 is: 399,580.92
Step by Step Solution
- Step 1: Write the proportion equation
515,980.99 : 711,976.66 = 289,582.75 : x - Step 2: Convert to fraction form
515,980.99/711,976.66 = 289,582.75/x - Step 3: Cross multiply
515,980.99x = 711,976.66 × 289,582.75 - Step 4: Simplify right side
515,980.99x = 206,176,159,138.62 - Step 5: Solve for x
x = 206,176,159,138.62/515,980.99 - Step 6: Final answer
x = 399,580.92
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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.