Finding the Fourth Proportional to 1,636,542.09, 2,258,266.41 and 911,457.27
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Solution
The fourth proportional to 1,636,542.09, 2,258,266.41 and 911,457.27 is: 1,257,720.99
Step by Step Solution
- Step 1: Write the proportion equation
1,636,542.09 : 2,258,266.41 = 911,457.27 : x - Step 2: Convert to fraction form
1,636,542.09/2,258,266.41 = 911,457.27/x - Step 3: Cross multiply
1,636,542.09x = 2,258,266.41 × 911,457.27 - Step 4: Simplify right side
1,636,542.09x = 2,058,313,336,991.30 - Step 5: Solve for x
x = 2,058,313,336,991.30/1,636,542.09 - Step 6: Final answer
x = 1,257,720.99
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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.