Finding the Fourth Proportional to 2,107,591.97, 2,908,547.33 and 1,291,638.02
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Solution
The fourth proportional to 2,107,591.97, 2,908,547.33 and 1,291,638.02 is: 1,782,503.61
Step by Step Solution
- Step 1: Write the proportion equation
2,107,591.97 : 2,908,547.33 = 1,291,638.02 : x - Step 2: Convert to fraction form
2,107,591.97/2,908,547.33 = 1,291,638.02/x - Step 3: Cross multiply
2,107,591.97x = 2,908,547.33 × 1,291,638.02 - Step 4: Simplify right side
2,107,591.97x = 3,756,790,293,396.56 - Step 5: Solve for x
x = 3,756,790,293,396.56/2,107,591.97 - Step 6: Final answer
x = 1,782,503.61
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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.