Finding the Fourth Proportional to 877,087.10, 1,210,381.36 and 474,679.10
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Solution
The fourth proportional to 877,087.10, 1,210,381.36 and 474,679.10 is: 655,057.78
Step by Step Solution
- Step 1: Write the proportion equation
877,087.10 : 1,210,381.36 = 474,679.10 : x - Step 2: Convert to fraction form
877,087.10/1,210,381.36 = 474,679.10/x - Step 3: Cross multiply
877,087.10x = 1,210,381.36 × 474,679.10 - Step 4: Simplify right side
877,087.10x = 574,542,727,382.97 - Step 5: Solve for x
x = 574,542,727,382.97/877,087.10 - Step 6: Final answer
x = 655,057.78
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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.