Finding the Fourth Proportional to 1,872,516.21, 2,586,717.77 and 1,490,053.65
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Solution
The fourth proportional to 1,872,516.21, 2,586,717.77 and 1,490,053.65 is: 2,058,379.11
Step by Step Solution
- Step 1: Write the proportion equation
1,872,516.21 : 2,586,717.77 = 1,490,053.65 : x - Step 2: Convert to fraction form
1,872,516.21/2,586,717.77 = 1,490,053.65/x - Step 3: Cross multiply
1,872,516.21x = 2,586,717.77 × 1,490,053.65 - Step 4: Simplify right side
1,872,516.21x = 3,854,348,247,258.09 - Step 5: Solve for x
x = 3,854,348,247,258.09/1,872,516.21 - Step 6: Final answer
x = 2,058,379.11
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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.