Finding the Fourth Proportional to 1,979,739.62, 2,732,040.70 and 1,074,321.62
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Solution
The fourth proportional to 1,979,739.62, 2,732,040.70 and 1,074,321.62 is: 1,482,563.85
Step by Step Solution
- Step 1: Write the proportion equation
1,979,739.62 : 2,732,040.70 = 1,074,321.62 : x - Step 2: Convert to fraction form
1,979,739.62/2,732,040.70 = 1,074,321.62/x - Step 3: Cross multiply
1,979,739.62x = 2,732,040.70 × 1,074,321.62 - Step 4: Simplify right side
1,979,739.62x = 2,935,090,390,729.93 - Step 5: Solve for x
x = 2,935,090,390,729.93/1,979,739.62 - Step 6: Final answer
x = 1,482,563.85
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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.