Finding the Fourth Proportional to 1,246,859.26, 1,720,631.36 and 702,990.29
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Solution
The fourth proportional to 1,246,859.26, 1,720,631.36 and 702,990.29 is: 970,107.20
Step by Step Solution
- Step 1: Write the proportion equation
1,246,859.26 : 1,720,631.36 = 702,990.29 : x - Step 2: Convert to fraction form
1,246,859.26/1,720,631.36 = 702,990.29/x - Step 3: Cross multiply
1,246,859.26x = 1,720,631.36 × 702,990.29 - Step 4: Simplify right side
1,246,859.26x = 1,209,587,144,808.55 - Step 5: Solve for x
x = 1,209,587,144,808.55/1,246,859.26 - Step 6: Final answer
x = 970,107.20
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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.