Finding the Fourth Proportional to 3,398,700.43, 4,689,657.80 and 1,948,128.94
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Solution
The fourth proportional to 3,398,700.43, 4,689,657.80 and 1,948,128.94 is: 2,688,103.37
Step by Step Solution
- Step 1: Write the proportion equation
3,398,700.43 : 4,689,657.80 = 1,948,128.94 : x - Step 2: Convert to fraction form
3,398,700.43/4,689,657.80 = 1,948,128.94/x - Step 3: Cross multiply
3,398,700.43x = 4,689,657.80 × 1,948,128.94 - Step 4: Simplify right side
3,398,700.43x = 9,136,058,064,717.43 - Step 5: Solve for x
x = 9,136,058,064,717.43/3,398,700.43 - Step 6: Final answer
x = 2,688,103.37
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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.