Finding the Fourth Proportional to 1,386,394.20, 2,079,299.70 and 587,701.80
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Solution
The fourth proportional to 1,386,394.20, 2,079,299.70 and 587,701.80 is: 881,429.09
Step by Step Solution
- Step 1: Write the proportion equation
1,386,394.20 : 2,079,299.70 = 587,701.80 : x - Step 2: Convert to fraction form
1,386,394.20/2,079,299.70 = 587,701.80/x - Step 3: Cross multiply
1,386,394.20x = 2,079,299.70 × 587,701.80 - Step 4: Simplify right side
1,386,394.20x = 1,222,008,176,429.46 - Step 5: Solve for x
x = 1,222,008,176,429.46/1,386,394.20 - Step 6: Final answer
x = 881,429.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.