Finding the Fourth Proportional to 1,641,139.01, 2,264,885.94 and 916,128.26
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Solution
The fourth proportional to 1,641,139.01, 2,264,885.94 and 916,128.26 is: 1,264,320.70
Step by Step Solution
- Step 1: Write the proportion equation
1,641,139.01 : 2,264,885.94 = 916,128.26 : x - Step 2: Convert to fraction form
1,641,139.01/2,264,885.94 = 916,128.26/x - Step 3: Cross multiply
1,641,139.01x = 2,264,885.94 × 916,128.26 - Step 4: Simplify right side
1,641,139.01x = 2,074,926,015,310.66 - Step 5: Solve for x
x = 2,074,926,015,310.66/1,641,139.01 - Step 6: Final answer
x = 1,264,320.70
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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.