Finding the Fourth Proportional to 2,785,403.20, 4,178,104.80 and 790,859.20
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Solution
The fourth proportional to 2,785,403.20, 4,178,104.80 and 790,859.20 is: 1,186,288.80
Step by Step Solution
- Step 1: Write the proportion equation
2,785,403.20 : 4,178,104.80 = 790,859.20 : x - Step 2: Convert to fraction form
2,785,403.20/4,178,104.80 = 790,859.20/x - Step 3: Cross multiply
2,785,403.20x = 4,178,104.80 × 790,859.20 - Step 4: Simplify right side
2,785,403.20x = 3,304,292,619,644.16 - Step 5: Solve for x
x = 3,304,292,619,644.16/2,785,403.20 - Step 6: Final answer
x = 1,186,288.80
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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.