Finding the Fourth Proportional to 1,197,918.36, 1,796,278.14 and 398,921.40
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Solution
The fourth proportional to 1,197,918.36, 1,796,278.14 and 398,921.40 is: 598,182.49
Step by Step Solution
- Step 1: Write the proportion equation
1,197,918.36 : 1,796,278.14 = 398,921.40 : x - Step 2: Convert to fraction form
1,197,918.36/1,796,278.14 = 398,921.40/x - Step 3: Cross multiply
1,197,918.36x = 1,796,278.14 × 398,921.40 - Step 4: Simplify right side
1,197,918.36x = 716,573,790,398.20 - Step 5: Solve for x
x = 716,573,790,398.20/1,197,918.36 - Step 6: Final answer
x = 598,182.49
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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.