Finding the Fourth Proportional to 1,124,057.16, 1,549,378.26 and 878,614.20
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Solution
The fourth proportional to 1,124,057.16, 1,549,378.26 and 878,614.20 is: 1,211,064.52
Step by Step Solution
- Step 1: Write the proportion equation
1,124,057.16 : 1,549,378.26 = 878,614.20 : x - Step 2: Convert to fraction form
1,124,057.16/1,549,378.26 = 878,614.20/x - Step 3: Cross multiply
1,124,057.16x = 1,549,378.26 × 878,614.20 - Step 4: Simplify right side
1,124,057.16x = 1,361,305,740,407.29 - Step 5: Solve for x
x = 1,361,305,740,407.29/1,124,057.16 - Step 6: Final answer
x = 1,211,064.52
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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.