Finding the Fourth Proportional to 1,899,741.77, 2,621,639.61 and 1,028,572.19
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Solution
The fourth proportional to 1,899,741.77, 2,621,639.61 and 1,028,572.19 is: 1,419,427.44
Step by Step Solution
- Step 1: Write the proportion equation
1,899,741.77 : 2,621,639.61 = 1,028,572.19 : x - Step 2: Convert to fraction form
1,899,741.77/2,621,639.61 = 1,028,572.19/x - Step 3: Cross multiply
1,899,741.77x = 2,621,639.61 × 1,028,572.19 - Step 4: Simplify right side
1,899,741.77x = 2,696,545,581,940.25 - Step 5: Solve for x
x = 2,696,545,581,940.25/1,899,741.77 - Step 6: Final answer
x = 1,419,427.44
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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.