Finding the Fourth Proportional to 458,439.58, 687,302.97 and 218,430.46
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Solution
The fourth proportional to 458,439.58, 687,302.97 and 218,430.46 is: 327,475.88
Step by Step Solution
- Step 1: Write the proportion equation
458,439.58 : 687,302.97 = 218,430.46 : x - Step 2: Convert to fraction form
458,439.58/687,302.97 = 218,430.46/x - Step 3: Cross multiply
458,439.58x = 687,302.97 × 218,430.46 - Step 4: Simplify right side
458,439.58x = 150,127,903,896.47 - Step 5: Solve for x
x = 150,127,903,896.47/458,439.58 - Step 6: Final answer
x = 327,475.88
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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.