Finding the Fourth Proportional to 1,107,515.40, 1,660,236.30 and 867,496.20
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Solution
The fourth proportional to 1,107,515.40, 1,660,236.30 and 867,496.20 is: 1,300,432.19
Step by Step Solution
- Step 1: Write the proportion equation
1,107,515.40 : 1,660,236.30 = 867,496.20 : x - Step 2: Convert to fraction form
1,107,515.40/1,660,236.30 = 867,496.20/x - Step 3: Cross multiply
1,107,515.40x = 1,660,236.30 × 867,496.20 - Step 4: Simplify right side
1,107,515.40x = 1,440,248,681,352.06 - Step 5: Solve for x
x = 1,440,248,681,352.06/1,107,515.40 - Step 6: Final answer
x = 1,300,432.19
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.