Finding the Fourth Proportional to 1,338,909.81, 1,847,689.65 and 727,057.68
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Solution
The fourth proportional to 1,338,909.81, 1,847,689.65 and 727,057.68 is: 1,003,336.40
Step by Step Solution
- Step 1: Write the proportion equation
1,338,909.81 : 1,847,689.65 = 727,057.68 : x - Step 2: Convert to fraction form
1,338,909.81/1,847,689.65 = 727,057.68/x - Step 3: Cross multiply
1,338,909.81x = 1,847,689.65 × 727,057.68 - Step 4: Simplify right side
1,338,909.81x = 1,343,376,950,289.01 - Step 5: Solve for x
x = 1,343,376,950,289.01/1,338,909.81 - Step 6: Final answer
x = 1,003,336.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.