Finding the Fourth Proportional to 1,542,420.68, 2,130,757.67 and 1,231,915.58
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Solution
The fourth proportional to 1,542,420.68, 2,130,757.67 and 1,231,915.58 is: 1,701,814.30
Step by Step Solution
- Step 1: Write the proportion equation
1,542,420.68 : 2,130,757.67 = 1,231,915.58 : x - Step 2: Convert to fraction form
1,542,420.68/2,130,757.67 = 1,231,915.58/x - Step 3: Cross multiply
1,542,420.68x = 2,130,757.67 × 1,231,915.58 - Step 4: Simplify right side
1,542,420.68x = 2,624,913,554,064.13 - Step 5: Solve for x
x = 2,624,913,554,064.13/1,542,420.68 - Step 6: Final answer
x = 1,701,814.30
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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.