Finding the Fourth Proportional to 1,212,062.39, 1,672,658.99 and 668,217.65
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Solution
The fourth proportional to 1,212,062.39, 1,672,658.99 and 668,217.65 is: 922,147.45
Step by Step Solution
- Step 1: Write the proportion equation
1,212,062.39 : 1,672,658.99 = 668,217.65 : x - Step 2: Convert to fraction form
1,212,062.39/1,672,658.99 = 668,217.65/x - Step 3: Cross multiply
1,212,062.39x = 1,672,658.99 × 668,217.65 - Step 4: Simplify right side
1,212,062.39x = 1,117,700,247,844.79 - Step 5: Solve for x
x = 1,117,700,247,844.79/1,212,062.39 - Step 6: Final answer
x = 922,147.45
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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.