Finding the Fourth Proportional to 1,760,643.63, 2,639,178.81 and 1,000,915.65
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Solution
The fourth proportional to 1,760,643.63, 2,639,178.81 and 1,000,915.65 is: 1,500,357.78
Step by Step Solution
- Step 1: Write the proportion equation
1,760,643.63 : 2,639,178.81 = 1,000,915.65 : x - Step 2: Convert to fraction form
1,760,643.63/2,639,178.81 = 1,000,915.65/x - Step 3: Cross multiply
1,760,643.63x = 2,639,178.81 × 1,000,915.65 - Step 4: Simplify right side
1,760,643.63x = 2,641,595,374,077.38 - Step 5: Solve for x
x = 2,641,595,374,077.38/1,760,643.63 - Step 6: Final answer
x = 1,500,357.78
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.