Finding the Fourth Proportional to 838,615.68, 1,256,802.48 and 305,635.68
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Solution
The fourth proportional to 838,615.68, 1,256,802.48 and 305,635.68 is: 458,044.95
Step by Step Solution
- Step 1: Write the proportion equation
838,615.68 : 1,256,802.48 = 305,635.68 : x - Step 2: Convert to fraction form
838,615.68/1,256,802.48 = 305,635.68/x - Step 3: Cross multiply
838,615.68x = 1,256,802.48 × 305,635.68 - Step 4: Simplify right side
838,615.68x = 384,123,680,600.49 - Step 5: Solve for x
x = 384,123,680,600.49/838,615.68 - Step 6: Final answer
x = 458,044.95
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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.