Finding the Fourth Proportional to 1,010,339.26, 1,394,268.20 and 688,611.40
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Solution
The fourth proportional to 1,010,339.26, 1,394,268.20 and 688,611.40 is: 950,283.75
Step by Step Solution
- Step 1: Write the proportion equation
1,010,339.26 : 1,394,268.20 = 688,611.40 : x - Step 2: Convert to fraction form
1,010,339.26/1,394,268.20 = 688,611.40/x - Step 3: Cross multiply
1,010,339.26x = 1,394,268.20 × 688,611.40 - Step 4: Simplify right side
1,010,339.26x = 960,108,977,720.82 - Step 5: Solve for x
x = 960,108,977,720.82/1,010,339.26 - Step 6: Final answer
x = 950,283.75
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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.