Finding the Fourth Proportional to 1,943,127.20, 2,913,135.60 and 820,272.80
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Solution
The fourth proportional to 1,943,127.20, 2,913,135.60 and 820,272.80 is: 1,229,752.69
Step by Step Solution
- Step 1: Write the proportion equation
1,943,127.20 : 2,913,135.60 = 820,272.80 : x - Step 2: Convert to fraction form
1,943,127.20/2,913,135.60 = 820,272.80/x - Step 3: Cross multiply
1,943,127.20x = 2,913,135.60 × 820,272.80 - Step 4: Simplify right side
1,943,127.20x = 2,389,565,895,391.68 - Step 5: Solve for x
x = 2,389,565,895,391.68/1,943,127.20 - Step 6: Final answer
x = 1,229,752.69
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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.