Finding the Fourth Proportional to 1,073,168.21, 1,480,649.19 and 643,291.49
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Solution
The fourth proportional to 1,073,168.21, 1,480,649.19 and 643,291.49 is: 887,548.67
Step by Step Solution
- Step 1: Write the proportion equation
1,073,168.21 : 1,480,649.19 = 643,291.49 : x - Step 2: Convert to fraction form
1,073,168.21/1,480,649.19 = 643,291.49/x - Step 3: Cross multiply
1,073,168.21x = 1,480,649.19 × 643,291.49 - Step 4: Simplify right side
1,073,168.21x = 952,489,024,891.67 - Step 5: Solve for x
x = 952,489,024,891.67/1,073,168.21 - Step 6: Final answer
x = 887,548.67
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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.