Finding the Fourth Proportional to 1,539,739.20, 2,309,661.60 and 474,772.80
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Solution
The fourth proportional to 1,539,739.20, 2,309,661.60 and 474,772.80 is: 712,175.48
Step by Step Solution
- Step 1: Write the proportion equation
1,539,739.20 : 2,309,661.60 = 474,772.80 : x - Step 2: Convert to fraction form
1,539,739.20/2,309,661.60 = 474,772.80/x - Step 3: Cross multiply
1,539,739.20x = 2,309,661.60 × 474,772.80 - Step 4: Simplify right side
1,539,739.20x = 1,096,564,504,884.48 - Step 5: Solve for x
x = 1,096,564,504,884.48/1,539,739.20 - Step 6: Final answer
x = 712,175.48
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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.