Finding the Fourth Proportional to 3,551,618.40, 5,328,205.20 and 1,421,167.20
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Solution
The fourth proportional to 3,551,618.40, 5,328,205.20 and 1,421,167.20 is: 2,132,061.95
Step by Step Solution
- Step 1: Write the proportion equation
3,551,618.40 : 5,328,205.20 = 1,421,167.20 : x - Step 2: Convert to fraction form
3,551,618.40/5,328,205.20 = 1,421,167.20/x - Step 3: Cross multiply
3,551,618.40x = 5,328,205.20 × 1,421,167.20 - Step 4: Simplify right side
3,551,618.40x = 7,572,270,465,109.44 - Step 5: Solve for x
x = 7,572,270,465,109.44/3,551,618.40 - Step 6: Final answer
x = 2,132,061.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.