Finding the Fourth Proportional to 858,749.68, 1,288,007.88 and 326,404.72
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Solution
The fourth proportional to 858,749.68, 1,288,007.88 and 326,404.72 is: 489,562.75
Step by Step Solution
- Step 1: Write the proportion equation
858,749.68 : 1,288,007.88 = 326,404.72 : x - Step 2: Convert to fraction form
858,749.68/1,288,007.88 = 326,404.72/x - Step 3: Cross multiply
858,749.68x = 1,288,007.88 × 326,404.72 - Step 4: Simplify right side
858,749.68x = 420,411,851,429.19 - Step 5: Solve for x
x = 420,411,851,429.19/858,749.68 - Step 6: Final answer
x = 489,562.75
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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.