Finding the Fourth Proportional to 4,178,406.64, 6,268,512.34 and 1,299,718.68
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Solution
The fourth proportional to 4,178,406.64, 6,268,512.34 and 1,299,718.68 is: 1,949,858.71
Step by Step Solution
- Step 1: Write the proportion equation
4,178,406.64 : 6,268,512.34 = 1,299,718.68 : x - Step 2: Convert to fraction form
4,178,406.64/6,268,512.34 = 1,299,718.68/x - Step 3: Cross multiply
4,178,406.64x = 6,268,512.34 × 1,299,718.68 - Step 4: Simplify right side
4,178,406.64x = 8,147,302,584,108.51 - Step 5: Solve for x
x = 8,147,302,584,108.51/4,178,406.64 - Step 6: Final answer
x = 1,949,858.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.