Finding the Fourth Proportional to 1,863,623.67, 2,570,207.22 and 1,283,772.21
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Solution
The fourth proportional to 1,863,623.67, 2,570,207.22 and 1,283,772.21 is: 1,770,507.99
Step by Step Solution
- Step 1: Write the proportion equation
1,863,623.67 : 2,570,207.22 = 1,283,772.21 : x - Step 2: Convert to fraction form
1,863,623.67/2,570,207.22 = 1,283,772.21/x - Step 3: Cross multiply
1,863,623.67x = 2,570,207.22 × 1,283,772.21 - Step 4: Simplify right side
1,863,623.67x = 3,299,560,602,977.36 - Step 5: Solve for x
x = 3,299,560,602,977.36/1,863,623.67 - Step 6: Final answer
x = 1,770,507.99
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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.