Finding the Fourth Proportional to 3,440,995.63, 4,748,567.09 and 1,971,380.13
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Solution
The fourth proportional to 3,440,995.63, 4,748,567.09 and 1,971,380.13 is: 2,720,500.63
Step by Step Solution
- Step 1: Write the proportion equation
3,440,995.63 : 4,748,567.09 = 1,971,380.13 : x - Step 2: Convert to fraction form
3,440,995.63/4,748,567.09 = 1,971,380.13/x - Step 3: Cross multiply
3,440,995.63x = 4,748,567.09 × 1,971,380.13 - Step 4: Simplify right side
3,440,995.63x = 9,361,230,779,533.90 - Step 5: Solve for x
x = 9,361,230,779,533.90/3,440,995.63 - Step 6: Final answer
x = 2,720,500.63
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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.