Finding the Fourth Proportional to 1,421,029.20, 2,129,729.40 and 578,629.20
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Solution
The fourth proportional to 1,421,029.20, 2,129,729.40 and 578,629.20 is: 867,204.99
Step by Step Solution
- Step 1: Write the proportion equation
1,421,029.20 : 2,129,729.40 = 578,629.20 : x - Step 2: Convert to fraction form
1,421,029.20/2,129,729.40 = 578,629.20/x - Step 3: Cross multiply
1,421,029.20x = 2,129,729.40 × 578,629.20 - Step 4: Simplify right side
1,421,029.20x = 1,232,323,618,938.48 - Step 5: Solve for x
x = 1,232,323,618,938.48/1,421,029.20 - Step 6: Final answer
x = 867,204.99
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