Finding the Fourth Proportional to 947,012.49, 1,420,728.63 and 273,041.21
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Solution
The fourth proportional to 947,012.49, 1,420,728.63 and 273,041.21 is: 409,622.32
Step by Step Solution
- Step 1: Write the proportion equation
947,012.49 : 1,420,728.63 = 273,041.21 : x - Step 2: Convert to fraction form
947,012.49/1,420,728.63 = 273,041.21/x - Step 3: Cross multiply
947,012.49x = 1,420,728.63 × 273,041.21 - Step 4: Simplify right side
947,012.49x = 387,917,457,113.20 - Step 5: Solve for x
x = 387,917,457,113.20/947,012.49 - Step 6: Final answer
x = 409,622.32
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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.