Finding the Fourth Proportional to 1,971,350.70, 2,765,489.70 and 1,971,350.70
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Solution
The fourth proportional to 1,971,350.70, 2,765,489.70 and 1,971,350.70 is: 2,765,489.70
Step by Step Solution
- Step 1: Write the proportion equation
1,971,350.70 : 2,765,489.70 = 1,971,350.70 : x - Step 2: Convert to fraction form
1,971,350.70/2,765,489.70 = 1,971,350.70/x - Step 3: Cross multiply
1,971,350.70x = 2,765,489.70 × 1,971,350.70 - Step 4: Simplify right side
1,971,350.70x = 5,451,750,055,937.79 - Step 5: Solve for x
x = 5,451,750,055,937.79/1,971,350.70 - Step 6: Final answer
x = 2,765,489.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.