Finding the Fourth Proportional to 1,485,155.25, 2,049,557.99 and 806,135.49
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Solution
The fourth proportional to 1,485,155.25, 2,049,557.99 and 806,135.49 is: 1,112,490.72
Step by Step Solution
- Step 1: Write the proportion equation
1,485,155.25 : 2,049,557.99 = 806,135.49 : x - Step 2: Convert to fraction form
1,485,155.25/2,049,557.99 = 806,135.49/x - Step 3: Cross multiply
1,485,155.25x = 2,049,557.99 × 806,135.49 - Step 4: Simplify right side
1,485,155.25x = 1,652,221,430,521.39 - Step 5: Solve for x
x = 1,652,221,430,521.39/1,485,155.25 - Step 6: Final answer
x = 1,112,490.72
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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.