Finding the Fourth Proportional to 1,916,026.13, 2,643,995.36 and 1,099,655.24
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Solution
The fourth proportional to 1,916,026.13, 2,643,995.36 and 1,099,655.24 is: 1,517,454.95
Step by Step Solution
- Step 1: Write the proportion equation
1,916,026.13 : 2,643,995.36 = 1,099,655.24 : x - Step 2: Convert to fraction form
1,916,026.13/2,643,995.36 = 1,099,655.24/x - Step 3: Cross multiply
1,916,026.13x = 2,643,995.36 × 1,099,655.24 - Step 4: Simplify right side
1,916,026.13x = 2,907,483,333,441.43 - Step 5: Solve for x
x = 2,907,483,333,441.43/1,916,026.13 - Step 6: Final answer
x = 1,517,454.95
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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.