Finding the Fourth Proportional to 891,809.28, 1,230,615.36 and 529,170.72
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Solution
The fourth proportional to 891,809.28, 1,230,615.36 and 529,170.72 is: 730,207.27
Step by Step Solution
- Step 1: Write the proportion equation
891,809.28 : 1,230,615.36 = 529,170.72 : x - Step 2: Convert to fraction form
891,809.28/1,230,615.36 = 529,170.72/x - Step 3: Cross multiply
891,809.28x = 1,230,615.36 × 529,170.72 - Step 4: Simplify right side
891,809.28x = 651,205,616,094.26 - Step 5: Solve for x
x = 651,205,616,094.26/891,809.28 - Step 6: Final answer
x = 730,207.27
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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.