Finding the Fourth Proportional to 1,029,215.44, 1,418,544.05 and 684,435.14
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Solution
The fourth proportional to 1,029,215.44, 1,418,544.05 and 684,435.14 is: 943,341.27
Step by Step Solution
- Step 1: Write the proportion equation
1,029,215.44 : 1,418,544.05 = 684,435.14 : x - Step 2: Convert to fraction form
1,029,215.44/1,418,544.05 = 684,435.14/x - Step 3: Cross multiply
1,029,215.44x = 1,418,544.05 × 684,435.14 - Step 4: Simplify right side
1,029,215.44x = 970,901,395,457.92 - Step 5: Solve for x
x = 970,901,395,457.92/1,029,215.44 - Step 6: Final answer
x = 943,341.27
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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.