Finding the Fourth Proportional to 711,639.23, 1,067,339.93 and 312,172.74
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Solution
The fourth proportional to 711,639.23, 1,067,339.93 and 312,172.74 is: 468,206.95
Step by Step Solution
- Step 1: Write the proportion equation
711,639.23 : 1,067,339.93 = 312,172.74 : x - Step 2: Convert to fraction form
711,639.23/1,067,339.93 = 312,172.74/x - Step 3: Cross multiply
711,639.23x = 1,067,339.93 × 312,172.74 - Step 4: Simplify right side
711,639.23x = 333,194,428,898.65 - Step 5: Solve for x
x = 333,194,428,898.65/711,639.23 - Step 6: Final answer
x = 468,206.95
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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.