Finding the Fourth Proportional to 1,660,272.21, 2,490,408.99 and 1,281,745.59
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Solution
The fourth proportional to 1,660,272.21, 2,490,408.99 and 1,281,745.59 is: 1,922,618.91
Step by Step Solution
- Step 1: Write the proportion equation
1,660,272.21 : 2,490,408.99 = 1,281,745.59 : x - Step 2: Convert to fraction form
1,660,272.21/2,490,408.99 = 1,281,745.59/x - Step 3: Cross multiply
1,660,272.21x = 2,490,408.99 × 1,281,745.59 - Step 4: Simplify right side
1,660,272.21x = 3,192,070,740,228.85 - Step 5: Solve for x
x = 3,192,070,740,228.85/1,660,272.21 - Step 6: Final answer
x = 1,922,618.91
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.