Finding the Fourth Proportional to 3,913,763.36, 5,871,551.43 and 1,217,945.66
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Solution
The fourth proportional to 3,913,763.36, 5,871,551.43 and 1,217,945.66 is: 1,827,200.55
Step by Step Solution
- Step 1: Write the proportion equation
3,913,763.36 : 5,871,551.43 = 1,217,945.66 : x - Step 2: Convert to fraction form
3,913,763.36/5,871,551.43 = 1,217,945.66/x - Step 3: Cross multiply
3,913,763.36x = 5,871,551.43 × 1,217,945.66 - Step 4: Simplify right side
3,913,763.36x = 7,151,230,581,635.29 - Step 5: Solve for x
x = 7,151,230,581,635.29/3,913,763.36 - Step 6: Final answer
x = 1,827,200.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.