Finding the Fourth Proportional to 1,276,389.11, 1,761,416.91 and 703,429.26
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Solution
The fourth proportional to 1,276,389.11, 1,761,416.91 and 703,429.26 is: 970,732.35
Step by Step Solution
- Step 1: Write the proportion equation
1,276,389.11 : 1,761,416.91 = 703,429.26 : x - Step 2: Convert to fraction form
1,276,389.11/1,761,416.91 = 703,429.26/x - Step 3: Cross multiply
1,276,389.11x = 1,761,416.91 × 703,429.26 - Step 4: Simplify right side
1,276,389.11x = 1,239,032,193,552.79 - Step 5: Solve for x
x = 1,239,032,193,552.79/1,276,389.11 - Step 6: Final answer
x = 970,732.35
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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.