Finding the Fourth Proportional to 1,438,573.97, 2,157,172.46 and 679,782.17
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Solution
The fourth proportional to 1,438,573.97, 2,157,172.46 and 679,782.17 is: 1,019,347.91
Step by Step Solution
- Step 1: Write the proportion equation
1,438,573.97 : 2,157,172.46 = 679,782.17 : x - Step 2: Convert to fraction form
1,438,573.97/2,157,172.46 = 679,782.17/x - Step 3: Cross multiply
1,438,573.97x = 2,157,172.46 × 679,782.17 - Step 4: Simplify right side
1,438,573.97x = 1,466,407,372,524.13 - Step 5: Solve for x
x = 1,466,407,372,524.13/1,438,573.97 - Step 6: Final answer
x = 1,019,347.91
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.