Finding the Fourth Proportional to 1,715,422.70, 2,573,134.05 and 770,638.70
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Solution
The fourth proportional to 1,715,422.70, 2,573,134.05 and 770,638.70 is: 1,155,958.05
Step by Step Solution
- Step 1: Write the proportion equation
1,715,422.70 : 2,573,134.05 = 770,638.70 : x - Step 2: Convert to fraction form
1,715,422.70/2,573,134.05 = 770,638.70/x - Step 3: Cross multiply
1,715,422.70x = 2,573,134.05 × 770,638.70 - Step 4: Simplify right side
1,715,422.70x = 1,982,956,679,217.73 - Step 5: Solve for x
x = 1,982,956,679,217.73/1,715,422.70 - Step 6: Final answer
x = 1,155,958.05
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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.