Finding the Fourth Proportional to 1,987,526.78, 2,744,491.99 and 1,923,255.63
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Solution
The fourth proportional to 1,987,526.78, 2,744,491.99 and 1,923,255.63 is: 2,655,742.67
Step by Step Solution
- Step 1: Write the proportion equation
1,987,526.78 : 2,744,491.99 = 1,923,255.63 : x - Step 2: Convert to fraction form
1,987,526.78/2,744,491.99 = 1,923,255.63/x - Step 3: Cross multiply
1,987,526.78x = 2,744,491.99 × 1,923,255.63 - Step 4: Simplify right side
1,987,526.78x = 5,278,359,671,257.40 - Step 5: Solve for x
x = 5,278,359,671,257.40/1,987,526.78 - Step 6: Final answer
x = 2,655,742.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.