Finding the Fourth Proportional to 1,542,445.67, 2,128,573.69 and 854,117.49
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Solution
The fourth proportional to 1,542,445.67, 2,128,573.69 and 854,117.49 is: 1,178,681.40
Step by Step Solution
- Step 1: Write the proportion equation
1,542,445.67 : 2,128,573.69 = 854,117.49 : x - Step 2: Convert to fraction form
1,542,445.67/2,128,573.69 = 854,117.49/x - Step 3: Cross multiply
1,542,445.67x = 2,128,573.69 × 854,117.49 - Step 4: Simplify right side
1,542,445.67x = 1,818,052,023,229.70 - Step 5: Solve for x
x = 1,818,052,023,229.70/1,542,445.67 - Step 6: Final answer
x = 1,178,681.40
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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.