Finding the Fourth Proportional to 686,566.09, 1,029,708.40 and 259,954.74
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Solution
The fourth proportional to 686,566.09, 1,029,708.40 and 259,954.74 is: 389,878.81
Step by Step Solution
- Step 1: Write the proportion equation
686,566.09 : 1,029,708.40 = 259,954.74 : x - Step 2: Convert to fraction form
686,566.09/1,029,708.40 = 259,954.74/x - Step 3: Cross multiply
686,566.09x = 1,029,708.40 × 259,954.74 - Step 4: Simplify right side
686,566.09x = 267,677,572,949.50 - Step 5: Solve for x
x = 267,677,572,949.50/686,566.09 - Step 6: Final answer
x = 389,878.81
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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.