Finding the Fourth Proportional to 2,489,515.56, 3,435,961.68 and 1,442,790.63
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Solution
The fourth proportional to 2,489,515.56, 3,435,961.68 and 1,442,790.63 is: 1,991,300.39
Step by Step Solution
- Step 1: Write the proportion equation
2,489,515.56 : 3,435,961.68 = 1,442,790.63 : x - Step 2: Convert to fraction form
2,489,515.56/3,435,961.68 = 1,442,790.63/x - Step 3: Cross multiply
2,489,515.56x = 3,435,961.68 × 1,442,790.63 - Step 4: Simplify right side
2,489,515.56x = 4,957,373,316,943.06 - Step 5: Solve for x
x = 4,957,373,316,943.06/2,489,515.56 - Step 6: Final answer
x = 1,991,300.39
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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.