Finding the Fourth Proportional to 3,432,021.30, 4,742,455.57 and 2,500,107.12
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Solution
The fourth proportional to 3,432,021.30, 4,742,455.57 and 2,500,107.12 is: 3,454,712.51
Step by Step Solution
- Step 1: Write the proportion equation
3,432,021.30 : 4,742,455.57 = 2,500,107.12 : x - Step 2: Convert to fraction form
3,432,021.30/4,742,455.57 = 2,500,107.12/x - Step 3: Cross multiply
3,432,021.30x = 4,742,455.57 × 2,500,107.12 - Step 4: Simplify right side
3,432,021.30x = 11,856,646,930,590.39 - Step 5: Solve for x
x = 11,856,646,930,590.39/3,432,021.30 - Step 6: Final answer
x = 3,454,712.51
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1.5x scale
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.