Finding the Fourth Proportional to 3,830,811.60, 5,743,301.40 and 1,938,910.80
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Solution
The fourth proportional to 3,830,811.60, 5,743,301.40 and 1,938,910.80 is: 2,906,890.31
Step by Step Solution
- Step 1: Write the proportion equation
3,830,811.60 : 5,743,301.40 = 1,938,910.80 : x - Step 2: Convert to fraction form
3,830,811.60/5,743,301.40 = 1,938,910.80/x - Step 3: Cross multiply
3,830,811.60x = 5,743,301.40 × 1,938,910.80 - Step 4: Simplify right side
3,830,811.60x = 11,135,749,112,115.12 - Step 5: Solve for x
x = 11,135,749,112,115.12/3,830,811.60 - Step 6: Final answer
x = 2,906,890.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.