Finding the Fourth Proportional to 1,387,230.80, 2,080,903.80 and 440,574.80
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Solution
The fourth proportional to 1,387,230.80, 2,080,903.80 and 440,574.80 is: 660,880.49
Step by Step Solution
- Step 1: Write the proportion equation
1,387,230.80 : 2,080,903.80 = 440,574.80 : x - Step 2: Convert to fraction form
1,387,230.80/2,080,903.80 = 440,574.80/x - Step 3: Cross multiply
1,387,230.80x = 2,080,903.80 × 440,574.80 - Step 4: Simplify right side
1,387,230.80x = 916,793,775,504.24 - Step 5: Solve for x
x = 916,793,775,504.24/1,387,230.80 - Step 6: Final answer
x = 660,880.49
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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.