Finding the Fourth Proportional to 1,138,327.98, 1,570,915.12 and 622,113.84
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Solution
The fourth proportional to 1,138,327.98, 1,570,915.12 and 622,113.84 is: 858,529.40
Step by Step Solution
- Step 1: Write the proportion equation
1,138,327.98 : 1,570,915.12 = 622,113.84 : x - Step 2: Convert to fraction form
1,138,327.98/1,570,915.12 = 622,113.84/x - Step 3: Cross multiply
1,138,327.98x = 1,570,915.12 × 622,113.84 - Step 4: Simplify right side
1,138,327.98x = 977,288,037,617.26 - Step 5: Solve for x
x = 977,288,037,617.26/1,138,327.98 - Step 6: Final answer
x = 858,529.40
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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.