Finding the Fourth Proportional to 1,859,793.12, 2,566,407.60 and 1,043,920.80
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Solution
The fourth proportional to 1,859,793.12, 2,566,407.60 and 1,043,920.80 is: 1,440,550.70
Step by Step Solution
- Step 1: Write the proportion equation
1,859,793.12 : 2,566,407.60 = 1,043,920.80 : x - Step 2: Convert to fraction form
1,859,793.12/2,566,407.60 = 1,043,920.80/x - Step 3: Cross multiply
1,859,793.12x = 2,566,407.60 × 1,043,920.80 - Step 4: Simplify right side
1,859,793.12x = 2,679,126,274,918.08 - Step 5: Solve for x
x = 2,679,126,274,918.08/1,859,793.12 - Step 6: Final answer
x = 1,440,550.70
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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.