Finding the Fourth Proportional to 1,320,348.76, 1,822,090.62 and 716,736.76
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Solution
The fourth proportional to 1,320,348.76, 1,822,090.62 and 716,736.76 is: 989,101.79
Step by Step Solution
- Step 1: Write the proportion equation
1,320,348.76 : 1,822,090.62 = 716,736.76 : x - Step 2: Convert to fraction form
1,320,348.76/1,822,090.62 = 716,736.76/x - Step 3: Cross multiply
1,320,348.76x = 1,822,090.62 × 716,736.76 - Step 4: Simplify right side
1,320,348.76x = 1,305,959,327,405.19 - Step 5: Solve for x
x = 1,305,959,327,405.19/1,320,348.76 - Step 6: Final answer
x = 989,101.79
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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.