Finding the Fourth Proportional to 486,806.08, 728,432.88 and 287,222.08
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Solution
The fourth proportional to 486,806.08, 728,432.88 and 287,222.08 is: 429,785.11
Step by Step Solution
- Step 1: Write the proportion equation
486,806.08 : 728,432.88 = 287,222.08 : x - Step 2: Convert to fraction form
486,806.08/728,432.88 = 287,222.08/x - Step 3: Cross multiply
486,806.08x = 728,432.88 × 287,222.08 - Step 4: Simplify right side
486,806.08x = 209,222,006,933.99 - Step 5: Solve for x
x = 209,222,006,933.99/486,806.08 - Step 6: Final answer
x = 429,785.11
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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.