Finding the Fourth Proportional to 1,010,431, 1,394,394.90 and 557,722.12
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Solution
The fourth proportional to 1,010,431, 1,394,394.90 and 557,722.12 is: 769,656.59
Step by Step Solution
- Step 1: Write the proportion equation
1,010,431 : 1,394,394.90 = 557,722.12 : x - Step 2: Convert to fraction form
1,010,431/1,394,394.90 = 557,722.12/x - Step 3: Cross multiply
1,010,431x = 1,394,394.90 × 557,722.12 - Step 4: Simplify right side
1,010,431x = 777,684,879,745.19 - Step 5: Solve for x
x = 777,684,879,745.19/1,010,431 - Step 6: Final answer
x = 769,656.59
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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.