Finding the Fourth Proportional to 668,115.60, 999,840.60 and 458,163.60
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Solution
The fourth proportional to 668,115.60, 999,840.60 and 458,163.60 is: 685,645.67
Step by Step Solution
- Step 1: Write the proportion equation
668,115.60 : 999,840.60 = 458,163.60 : x - Step 2: Convert to fraction form
668,115.60/999,840.60 = 458,163.60/x - Step 3: Cross multiply
668,115.60x = 999,840.60 × 458,163.60 - Step 4: Simplify right side
668,115.60x = 458,090,568,722.16 - Step 5: Solve for x
x = 458,090,568,722.16/668,115.60 - Step 6: Final answer
x = 685,645.67
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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.