Finding the Fourth Proportional to 3,145,564.51, 4,340,372.61 and 1,768,826.14
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Solution
The fourth proportional to 3,145,564.51, 4,340,372.61 and 1,768,826.14 is: 2,440,695.31
Step by Step Solution
- Step 1: Write the proportion equation
3,145,564.51 : 4,340,372.61 = 1,768,826.14 : x - Step 2: Convert to fraction form
3,145,564.51/4,340,372.61 = 1,768,826.14/x - Step 3: Cross multiply
3,145,564.51x = 4,340,372.61 × 1,768,826.14 - Step 4: Simplify right side
3,145,564.51x = 7,677,364,525,690.19 - Step 5: Solve for x
x = 7,677,364,525,690.19/3,145,564.51 - Step 6: Final answer
x = 2,440,695.31
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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.