Finding the Fourth Proportional to 628,699.08, 867,624.30 and 342,238.26
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Solution
The fourth proportional to 628,699.08, 867,624.30 and 342,238.26 is: 472,299.45
Step by Step Solution
- Step 1: Write the proportion equation
628,699.08 : 867,624.30 = 342,238.26 : x - Step 2: Convert to fraction form
628,699.08/867,624.30 = 342,238.26/x - Step 3: Cross multiply
628,699.08x = 867,624.30 × 342,238.26 - Step 4: Simplify right side
628,699.08x = 296,934,230,765.72 - Step 5: Solve for x
x = 296,934,230,765.72/628,699.08 - Step 6: Final answer
x = 472,299.45
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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.