Finding the Fourth Proportional to 2,168,643.08, 2,992,744.80 and 1,201,789.41
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Solution
The fourth proportional to 2,168,643.08, 2,992,744.80 and 1,201,789.41 is: 1,658,479.00
Step by Step Solution
- Step 1: Write the proportion equation
2,168,643.08 : 2,992,744.80 = 1,201,789.41 : x - Step 2: Convert to fraction form
2,168,643.08/2,992,744.80 = 1,201,789.41/x - Step 3: Cross multiply
2,168,643.08x = 2,992,744.80 × 1,201,789.41 - Step 4: Simplify right side
2,168,643.08x = 3,596,649,007,472.57 - Step 5: Solve for x
x = 3,596,649,007,472.57/2,168,643.08 - Step 6: Final answer
x = 1,658,479.00
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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.