Finding the Fourth Proportional to 1,581,408.23, 2,182,344.26 and 856,256.40
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Solution
The fourth proportional to 1,581,408.23, 2,182,344.26 and 856,256.40 is: 1,181,634.32
Step by Step Solution
- Step 1: Write the proportion equation
1,581,408.23 : 2,182,344.26 = 856,256.40 : x - Step 2: Convert to fraction form
1,581,408.23/2,182,344.26 = 856,256.40/x - Step 3: Cross multiply
1,581,408.23x = 2,182,344.26 × 856,256.40 - Step 4: Simplify right side
1,581,408.23x = 1,868,646,235,346.98 - Step 5: Solve for x
x = 1,868,646,235,346.98/1,581,408.23 - Step 6: Final answer
x = 1,181,634.32
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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.