Finding the Fourth Proportional to 3,507,107.40, 5,260,661.10 and 3,312,245.70
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Solution
The fourth proportional to 3,507,107.40, 5,260,661.10 and 3,312,245.70 is: 4,968,368.55
Step by Step Solution
- Step 1: Write the proportion equation
3,507,107.40 : 5,260,661.10 = 3,312,245.70 : x - Step 2: Convert to fraction form
3,507,107.40/5,260,661.10 = 3,312,245.70/x - Step 3: Cross multiply
3,507,107.40x = 5,260,661.10 × 3,312,245.70 - Step 4: Simplify right side
3,507,107.40x = 17,424,602,107,632.27 - Step 5: Solve for x
x = 17,424,602,107,632.27/3,507,107.40 - Step 6: Final answer
x = 4,968,368.55
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Double scale
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Similar ratio
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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.