Finding the Fourth Proportional to 3,228,312.12, 4,422,806.88 and 3,107,239.80
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Solution
The fourth proportional to 3,228,312.12, 4,422,806.88 and 3,107,239.80 is: 4,256,937.08
Step by Step Solution
- Step 1: Write the proportion equation
3,228,312.12 : 4,422,806.88 = 3,107,239.80 : x - Step 2: Convert to fraction form
3,228,312.12/4,422,806.88 = 3,107,239.80/x - Step 3: Cross multiply
3,228,312.12x = 4,422,806.88 × 3,107,239.80 - Step 4: Simplify right side
3,228,312.12x = 13,742,721,565,249.82 - Step 5: Solve for x
x = 13,742,721,565,249.82/3,228,312.12 - Step 6: Final answer
x = 4,256,937.08
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.