Finding the Fourth Proportional to 1,605,160.49, 2,215,120.95 and 879,992.64
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Solution
The fourth proportional to 1,605,160.49, 2,215,120.95 and 879,992.64 is: 1,214,389.56
Step by Step Solution
- Step 1: Write the proportion equation
1,605,160.49 : 2,215,120.95 = 879,992.64 : x - Step 2: Convert to fraction form
1,605,160.49/2,215,120.95 = 879,992.64/x - Step 3: Cross multiply
1,605,160.49x = 2,215,120.95 × 879,992.64 - Step 4: Simplify right side
1,605,160.49x = 1,949,290,132,709.81 - Step 5: Solve for x
x = 1,949,290,132,709.81/1,605,160.49 - Step 6: Final answer
x = 1,214,389.56
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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.