Finding the Fourth Proportional to 2,166,324.65, 2,989,621.32 and 1,199,454.79
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Solution
The fourth proportional to 2,166,324.65, 2,989,621.32 and 1,199,454.79 is: 1,655,299.26
Step by Step Solution
- Step 1: Write the proportion equation
2,166,324.65 : 2,989,621.32 = 1,199,454.79 : x - Step 2: Convert to fraction form
2,166,324.65/2,989,621.32 = 1,199,454.79/x - Step 3: Cross multiply
2,166,324.65x = 2,989,621.32 × 1,199,454.79 - Step 4: Simplify right side
2,166,324.65x = 3,585,915,600,588.12 - Step 5: Solve for x
x = 3,585,915,600,588.12/2,166,324.65 - Step 6: Final answer
x = 1,655,299.26
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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.