Finding the Fourth Proportional to 1,242,689.26, 1,714,711.12 and 698,792.62
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Solution
The fourth proportional to 1,242,689.26, 1,714,711.12 and 698,792.62 is: 964,221.32
Step by Step Solution
- Step 1: Write the proportion equation
1,242,689.26 : 1,714,711.12 = 698,792.62 : x - Step 2: Convert to fraction form
1,242,689.26/1,714,711.12 = 698,792.62/x - Step 3: Cross multiply
1,242,689.26x = 1,714,711.12 × 698,792.62 - Step 4: Simplify right side
1,242,689.26x = 1,198,227,477,199.97 - Step 5: Solve for x
x = 1,198,227,477,199.97/1,242,689.26 - Step 6: Final answer
x = 964,221.32
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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.