Finding the Fourth Proportional to 915,905.92, 1,374,027.84 and 284,778.88
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Solution
The fourth proportional to 915,905.92, 1,374,027.84 and 284,778.88 is: 427,220.85
Step by Step Solution
- Step 1: Write the proportion equation
915,905.92 : 1,374,027.84 = 284,778.88 : x - Step 2: Convert to fraction form
915,905.92/1,374,027.84 = 284,778.88/x - Step 3: Cross multiply
915,905.92x = 1,374,027.84 × 284,778.88 - Step 4: Simplify right side
915,905.92x = 391,294,109,364.02 - Step 5: Solve for x
x = 391,294,109,364.02/915,905.92 - Step 6: Final answer
x = 427,220.85
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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.