Finding the Fourth Proportional to 2,752,079.40, 4,128,775.20 and 1,330,966.80
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Solution
The fourth proportional to 2,752,079.40, 4,128,775.20 and 1,330,966.80 is: 1,996,767.50
Step by Step Solution
- Step 1: Write the proportion equation
2,752,079.40 : 4,128,775.20 = 1,330,966.80 : x - Step 2: Convert to fraction form
2,752,079.40/4,128,775.20 = 1,330,966.80/x - Step 3: Cross multiply
2,752,079.40x = 4,128,775.20 × 1,330,966.80 - Step 4: Simplify right side
2,752,079.40x = 5,495,262,715,863.36 - Step 5: Solve for x
x = 5,495,262,715,863.36/2,752,079.40 - Step 6: Final answer
x = 1,996,767.50
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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.