Finding the Fourth Proportional to 1,211,746.64, 1,672,283.40 and 667,881.68
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Solution
The fourth proportional to 1,211,746.64, 1,672,283.40 and 667,881.68 is: 921,716.97
Step by Step Solution
- Step 1: Write the proportion equation
1,211,746.64 : 1,672,283.40 = 667,881.68 : x - Step 2: Convert to fraction form
1,211,746.64/1,672,283.40 = 667,881.68/x - Step 3: Cross multiply
1,211,746.64x = 1,672,283.40 × 667,881.68 - Step 4: Simplify right side
1,211,746.64x = 1,116,887,446,628.11 - Step 5: Solve for x
x = 1,116,887,446,628.11/1,211,746.64 - Step 6: Final answer
x = 921,716.97
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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.