Finding the Fourth Proportional to 1,787,077.70, 2,680,309.35 and 664,568.90
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Solution
The fourth proportional to 1,787,077.70, 2,680,309.35 and 664,568.90 is: 996,739.11
Step by Step Solution
- Step 1: Write the proportion equation
1,787,077.70 : 2,680,309.35 = 664,568.90 : x - Step 2: Convert to fraction form
1,787,077.70/2,680,309.35 = 664,568.90/x - Step 3: Cross multiply
1,787,077.70x = 2,680,309.35 × 664,568.90 - Step 4: Simplify right side
1,787,077.70x = 1,781,250,236,389.22 - Step 5: Solve for x
x = 1,781,250,236,389.22/1,787,077.70 - Step 6: Final answer
x = 996,739.11
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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.