Finding the Fourth Proportional to 1,862,257.40, 2,793,386.10 and 1,106,430.20
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Solution
The fourth proportional to 1,862,257.40, 2,793,386.10 and 1,106,430.20 is: 1,659,645.30
Step by Step Solution
- Step 1: Write the proportion equation
1,862,257.40 : 2,793,386.10 = 1,106,430.20 : x - Step 2: Convert to fraction form
1,862,257.40/2,793,386.10 = 1,106,430.20/x - Step 3: Cross multiply
1,862,257.40x = 2,793,386.10 × 1,106,430.20 - Step 4: Simplify right side
1,862,257.40x = 3,090,686,741,300.22 - Step 5: Solve for x
x = 3,090,686,741,300.22/1,862,257.40 - Step 6: Final answer
x = 1,659,645.30
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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.