Finding the Fourth Proportional to 1,211,746.14, 1,672,282.71 and 667,881.18
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Solution
The fourth proportional to 1,211,746.14, 1,672,282.71 and 667,881.18 is: 921,716.28
Step by Step Solution
- Step 1: Write the proportion equation
1,211,746.14 : 1,672,282.71 = 667,881.18 : x - Step 2: Convert to fraction form
1,211,746.14/1,672,282.71 = 667,881.18/x - Step 3: Cross multiply
1,211,746.14x = 1,672,282.71 × 667,881.18 - Step 4: Simplify right side
1,211,746.14x = 1,116,886,149,648.40 - Step 5: Solve for x
x = 1,116,886,149,648.40/1,211,746.14 - Step 6: Final answer
x = 921,716.28
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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.