Finding the Fourth Proportional to 1,221,441.62, 1,831,303.94 and 538,004.12
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Solution
The fourth proportional to 1,221,441.62, 1,831,303.94 and 538,004.12 is: 806,628.04
Step by Step Solution
- Step 1: Write the proportion equation
1,221,441.62 : 1,831,303.94 = 538,004.12 : x - Step 2: Convert to fraction form
1,221,441.62/1,831,303.94 = 538,004.12/x - Step 3: Cross multiply
1,221,441.62x = 1,831,303.94 × 538,004.12 - Step 4: Simplify right side
1,221,441.62x = 985,249,064,692.23 - Step 5: Solve for x
x = 985,249,064,692.23/1,221,441.62 - Step 6: Final answer
x = 806,628.04
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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.