Finding the Fourth Proportional to 2,142,520.07, 2,956,576.14 and 1,175,629.14
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Solution
The fourth proportional to 2,142,520.07, 2,956,576.14 and 1,175,629.14 is: 1,622,312.49
Step by Step Solution
- Step 1: Write the proportion equation
2,142,520.07 : 2,956,576.14 = 1,175,629.14 : x - Step 2: Convert to fraction form
2,142,520.07/2,956,576.14 = 1,175,629.14/x - Step 3: Cross multiply
2,142,520.07x = 2,956,576.14 × 1,175,629.14 - Step 4: Simplify right side
2,142,520.07x = 3,475,837,064,812.72 - Step 5: Solve for x
x = 3,475,837,064,812.72/2,142,520.07 - Step 6: Final answer
x = 1,622,312.49
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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.