Finding the Fourth Proportional to 2,828,961.21, 3,904,717.32 and 1,742,143.98
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Solution
The fourth proportional to 2,828,961.21, 3,904,717.32 and 1,742,143.98 is: 2,404,621.08
Step by Step Solution
- Step 1: Write the proportion equation
2,828,961.21 : 3,904,717.32 = 1,742,143.98 : x - Step 2: Convert to fraction form
2,828,961.21/3,904,717.32 = 1,742,143.98/x - Step 3: Cross multiply
2,828,961.21x = 3,904,717.32 × 1,742,143.98 - Step 4: Simplify right side
2,828,961.21x = 6,802,579,772,639.73 - Step 5: Solve for x
x = 6,802,579,772,639.73/2,828,961.21 - Step 6: Final answer
x = 2,404,621.08
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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.