Finding the Fourth Proportional to 419,749.84, 579,239.96 and 228,759.44
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Solution
The fourth proportional to 419,749.84, 579,239.96 and 228,759.44 is: 315,679.95
Step by Step Solution
- Step 1: Write the proportion equation
419,749.84 : 579,239.96 = 228,759.44 : x - Step 2: Convert to fraction form
419,749.84/579,239.96 = 228,759.44/x - Step 3: Cross multiply
419,749.84x = 579,239.96 × 228,759.44 - Step 4: Simplify right side
419,749.84x = 132,506,608,875.22 - Step 5: Solve for x
x = 132,506,608,875.22/419,749.84 - Step 6: Final answer
x = 315,679.95
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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.