Finding the Fourth Proportional to 1,575,660.28, 2,175,416.81 and 1,285,963.89
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Solution
The fourth proportional to 1,575,660.28, 2,175,416.81 and 1,285,963.89 is: 1,775,450.90
Step by Step Solution
- Step 1: Write the proportion equation
1,575,660.28 : 2,175,416.81 = 1,285,963.89 : x - Step 2: Convert to fraction form
1,575,660.28/2,175,416.81 = 1,285,963.89/x - Step 3: Cross multiply
1,575,660.28x = 2,175,416.81 × 1,285,963.89 - Step 4: Simplify right side
1,575,660.28x = 2,797,507,446,052.09 - Step 5: Solve for x
x = 2,797,507,446,052.09/1,575,660.28 - Step 6: Final answer
x = 1,775,450.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.