Finding the Fourth Proportional to 1,330,405.70, 1,995,414.15 and 383,677.70
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Solution
The fourth proportional to 1,330,405.70, 1,995,414.15 and 383,677.70 is: 575,460.49
Step by Step Solution
- Step 1: Write the proportion equation
1,330,405.70 : 1,995,414.15 = 383,677.70 : x - Step 2: Convert to fraction form
1,330,405.70/1,995,414.15 = 383,677.70/x - Step 3: Cross multiply
1,330,405.70x = 1,995,414.15 × 383,677.70 - Step 4: Simplify right side
1,330,405.70x = 765,595,911,619.46 - Step 5: Solve for x
x = 765,595,911,619.46/1,330,405.70 - Step 6: Final answer
x = 575,460.49
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1.5x scale
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.