Finding the Fourth Proportional to 1,986,689.97, 2,980,479.19 and 724,517.59
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Solution
The fourth proportional to 1,986,689.97, 2,980,479.19 and 724,517.59 is: 1,086,938.39
Step by Step Solution
- Step 1: Write the proportion equation
1,986,689.97 : 2,980,479.19 = 724,517.59 : x - Step 2: Convert to fraction form
1,986,689.97/2,980,479.19 = 724,517.59/x - Step 3: Cross multiply
1,986,689.97x = 2,980,479.19 × 724,517.59 - Step 4: Simplify right side
1,986,689.97x = 2,159,409,599,783.95 - Step 5: Solve for x
x = 2,159,409,599,783.95/1,986,689.97 - Step 6: Final answer
x = 1,086,938.39
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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.