Finding the Fourth Proportional to 1,928,316.20, 2,661,103.14 and 1,057,232.84
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Solution
The fourth proportional to 1,928,316.20, 2,661,103.14 and 1,057,232.84 is: 1,458,996.00
Step by Step Solution
- Step 1: Write the proportion equation
1,928,316.20 : 2,661,103.14 = 1,057,232.84 : x - Step 2: Convert to fraction form
1,928,316.20/2,661,103.14 = 1,057,232.84/x - Step 3: Cross multiply
1,928,316.20x = 2,661,103.14 × 1,057,232.84 - Step 4: Simplify right side
1,928,316.20x = 2,813,405,630,235.12 - Step 5: Solve for x
x = 2,813,405,630,235.12/1,928,316.20 - Step 6: Final answer
x = 1,458,996.00
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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.