Finding the Fourth Proportional to 3,939,815.10, 5,909,722.65 and 1,542,863.10
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Solution
The fourth proportional to 3,939,815.10, 5,909,722.65 and 1,542,863.10 is: 2,314,294.65
Step by Step Solution
- Step 1: Write the proportion equation
3,939,815.10 : 5,909,722.65 = 1,542,863.10 : x - Step 2: Convert to fraction form
3,939,815.10/5,909,722.65 = 1,542,863.10/x - Step 3: Cross multiply
3,939,815.10x = 5,909,722.65 × 1,542,863.10 - Step 4: Simplify right side
3,939,815.10x = 9,117,893,007,919.22 - Step 5: Solve for x
x = 9,117,893,007,919.22/3,939,815.10 - Step 6: Final answer
x = 2,314,294.65
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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.