Finding the Fourth Proportional to 1,394,367.09, 1,924,113.74 and 782,434.77
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Solution
The fourth proportional to 1,394,367.09, 1,924,113.74 and 782,434.77 is: 1,079,696.66
Step by Step Solution
- Step 1: Write the proportion equation
1,394,367.09 : 1,924,113.74 = 782,434.77 : x - Step 2: Convert to fraction form
1,394,367.09/1,924,113.74 = 782,434.77/x - Step 3: Cross multiply
1,394,367.09x = 1,924,113.74 × 782,434.77 - Step 4: Simplify right side
1,394,367.09x = 1,505,493,487,698.57 - Step 5: Solve for x
x = 1,505,493,487,698.57/1,394,367.09 - Step 6: Final answer
x = 1,079,696.66
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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.