Finding the Fourth Proportional to 1,343,550.13, 1,854,177.17 and 1,011,812.31
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Solution
The fourth proportional to 1,343,550.13, 1,854,177.17 and 1,011,812.31 is: 1,396,359.72
Step by Step Solution
- Step 1: Write the proportion equation
1,343,550.13 : 1,854,177.17 = 1,011,812.31 : x - Step 2: Convert to fraction form
1,343,550.13/1,854,177.17 = 1,011,812.31/x - Step 3: Cross multiply
1,343,550.13x = 1,854,177.17 × 1,011,812.31 - Step 4: Simplify right side
1,343,550.13x = 1,876,079,280,467.90 - Step 5: Solve for x
x = 1,876,079,280,467.90/1,343,550.13 - Step 6: Final answer
x = 1,396,359.72
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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.