Finding the Fourth Proportional to 638,455.10, 957,682.65 and 559,723.10
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Solution
The fourth proportional to 638,455.10, 957,682.65 and 559,723.10 is: 839,584.65
Step by Step Solution
- Step 1: Write the proportion equation
638,455.10 : 957,682.65 = 559,723.10 : x - Step 2: Convert to fraction form
638,455.10/957,682.65 = 559,723.10/x - Step 3: Cross multiply
638,455.10x = 957,682.65 × 559,723.10 - Step 4: Simplify right side
638,455.10x = 536,037,101,674.22 - Step 5: Solve for x
x = 536,037,101,674.22/638,455.10 - Step 6: Final answer
x = 839,584.65
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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.