Finding the Fourth Proportional to 1,351,872.80, 1,865,389.20 and 748,259.36
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Solution
The fourth proportional to 1,351,872.80, 1,865,389.20 and 748,259.36 is: 1,032,489.84
Step by Step Solution
- Step 1: Write the proportion equation
1,351,872.80 : 1,865,389.20 = 748,259.36 : x - Step 2: Convert to fraction form
1,351,872.80/1,865,389.20 = 748,259.36/x - Step 3: Cross multiply
1,351,872.80x = 1,865,389.20 × 748,259.36 - Step 4: Simplify right side
1,351,872.80x = 1,395,794,928,942.91 - Step 5: Solve for x
x = 1,395,794,928,942.91/1,351,872.80 - Step 6: Final answer
x = 1,032,489.84
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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.