Finding the Fourth Proportional to 1,213,751.28, 1,820,861.80 and 465,739.12
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Solution
The fourth proportional to 1,213,751.28, 1,820,861.80 and 465,739.12 is: 698,698.81
Step by Step Solution
- Step 1: Write the proportion equation
1,213,751.28 : 1,820,861.80 = 465,739.12 : x - Step 2: Convert to fraction form
1,213,751.28/1,820,861.80 = 465,739.12/x - Step 3: Cross multiply
1,213,751.28x = 1,820,861.80 × 465,739.12 - Step 4: Simplify right side
1,213,751.28x = 848,046,572,373.62 - Step 5: Solve for x
x = 848,046,572,373.62/1,213,751.28 - Step 6: Final answer
x = 698,698.81
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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.