Finding the Fourth Proportional to 2,748,388.43, 4,122,604.53 and 1,128,739.97
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Solution
The fourth proportional to 2,748,388.43, 4,122,604.53 and 1,128,739.97 is: 1,693,118.94
Step by Step Solution
- Step 1: Write the proportion equation
2,748,388.43 : 4,122,604.53 = 1,128,739.97 : x - Step 2: Convert to fraction form
2,748,388.43/4,122,604.53 = 1,128,739.97/x - Step 3: Cross multiply
2,748,388.43x = 4,122,604.53 × 1,128,739.97 - Step 4: Simplify right side
2,748,388.43x = 4,653,348,507,870.36 - Step 5: Solve for x
x = 4,653,348,507,870.36/2,748,388.43 - Step 6: Final answer
x = 1,693,118.94
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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.