Finding the Fourth Proportional to 1,412,423.20, 2,118,634.80 and 465,743.80
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Solution
The fourth proportional to 1,412,423.20, 2,118,634.80 and 465,743.80 is: 698,615.70
Step by Step Solution
- Step 1: Write the proportion equation
1,412,423.20 : 2,118,634.80 = 465,743.80 : x - Step 2: Convert to fraction form
1,412,423.20/2,118,634.80 = 465,743.80/x - Step 3: Cross multiply
1,412,423.20x = 2,118,634.80 × 465,743.80 - Step 4: Simplify right side
1,412,423.20x = 986,741,022,564.24 - Step 5: Solve for x
x = 986,741,022,564.24/1,412,423.20 - Step 6: Final answer
x = 698,615.70
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1.5x scale
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.