Finding the Fourth Proportional to 1,138,327.81, 1,570,915.14 and 622,113.79
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Solution
The fourth proportional to 1,138,327.81, 1,570,915.14 and 622,113.79 is: 858,529.47
Step by Step Solution
- Step 1: Write the proportion equation
1,138,327.81 : 1,570,915.14 = 622,113.79 : x - Step 2: Convert to fraction form
1,138,327.81/1,570,915.14 = 622,113.79/x - Step 3: Cross multiply
1,138,327.81x = 1,570,915.14 × 622,113.79 - Step 4: Simplify right side
1,138,327.81x = 977,287,971,513.78 - Step 5: Solve for x
x = 977,287,971,513.78/1,138,327.81 - Step 6: Final answer
x = 858,529.47
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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.