Finding the Fourth Proportional to 1,507,119.65, 2,079,704.45 and 862,392.05
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Solution
The fourth proportional to 1,507,119.65, 2,079,704.45 and 862,392.05 is: 1,190,031.98
Step by Step Solution
- Step 1: Write the proportion equation
1,507,119.65 : 2,079,704.45 = 862,392.05 : x - Step 2: Convert to fraction form
1,507,119.65/2,079,704.45 = 862,392.05/x - Step 3: Cross multiply
1,507,119.65x = 2,079,704.45 × 862,392.05 - Step 4: Simplify right side
1,507,119.65x = 1,793,520,584,029.62 - Step 5: Solve for x
x = 1,793,520,584,029.62/1,507,119.65 - Step 6: Final answer
x = 1,190,031.98
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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.