Finding the Fourth Proportional to 426,521.96, 639,784.74 and 110,956.08
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Solution
The fourth proportional to 426,521.96, 639,784.74 and 110,956.08 is: 166,434.59
Step by Step Solution
- Step 1: Write the proportion equation
426,521.96 : 639,784.74 = 110,956.08 : x - Step 2: Convert to fraction form
426,521.96/639,784.74 = 110,956.08/x - Step 3: Cross multiply
426,521.96x = 639,784.74 × 110,956.08 - Step 4: Simplify right side
426,521.96x = 70,988,006,794.22 - Step 5: Solve for x
x = 70,988,006,794.22/426,521.96 - Step 6: Final answer
x = 166,434.59
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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.