Finding the Fourth Proportional to 2,276,320.80, 3,413,497.05 and 1,138,643.40
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Solution
The fourth proportional to 2,276,320.80, 3,413,497.05 and 1,138,643.40 is: 1,707,472.82
Step by Step Solution
- Step 1: Write the proportion equation
2,276,320.80 : 3,413,497.05 = 1,138,643.40 : x - Step 2: Convert to fraction form
2,276,320.80/3,413,497.05 = 1,138,643.40/x - Step 3: Cross multiply
2,276,320.80x = 3,413,497.05 × 1,138,643.40 - Step 4: Simplify right side
2,276,320.80x = 3,886,755,886,901.97 - Step 5: Solve for x
x = 3,886,755,886,901.97/2,276,320.80 - Step 6: Final answer
x = 1,707,472.82
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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.