Finding the Fourth Proportional to 2,147,457.78, 2,963,416.14 and 1,180,580.99
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Solution
The fourth proportional to 2,147,457.78, 2,963,416.14 and 1,180,580.99 is: 1,629,160.20
Step by Step Solution
- Step 1: Write the proportion equation
2,147,457.78 : 2,963,416.14 = 1,180,580.99 : x - Step 2: Convert to fraction form
2,147,457.78/2,963,416.14 = 1,180,580.99/x - Step 3: Cross multiply
2,147,457.78x = 2,963,416.14 × 1,180,580.99 - Step 4: Simplify right side
2,147,457.78x = 3,498,552,745,526.10 - Step 5: Solve for x
x = 3,498,552,745,526.10/2,147,457.78 - Step 6: Final answer
x = 1,629,160.20
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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.