Finding the Fourth Proportional to 1,542,446.68, 2,128,575.07 and 854,118.50
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Solution
The fourth proportional to 1,542,446.68, 2,128,575.07 and 854,118.50 is: 1,178,682.78
Step by Step Solution
- Step 1: Write the proportion equation
1,542,446.68 : 2,128,575.07 = 854,118.50 : x - Step 2: Convert to fraction form
1,542,446.68/2,128,575.07 = 854,118.50/x - Step 3: Cross multiply
1,542,446.68x = 2,128,575.07 × 854,118.50 - Step 4: Simplify right side
1,542,446.68x = 1,818,055,331,012.33 - Step 5: Solve for x
x = 1,818,055,331,012.33/1,542,446.68 - Step 6: Final answer
x = 1,178,682.78
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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.