Finding the Fourth Proportional to 520,013.72, 780,112.74 and 195,794.84
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Solution
The fourth proportional to 520,013.72, 780,112.74 and 195,794.84 is: 293,726.96
Step by Step Solution
- Step 1: Write the proportion equation
520,013.72 : 780,112.74 = 195,794.84 : x - Step 2: Convert to fraction form
520,013.72/780,112.74 = 195,794.84/x - Step 3: Cross multiply
520,013.72x = 780,112.74 × 195,794.84 - Step 4: Simplify right side
520,013.72x = 152,742,049,110.26 - Step 5: Solve for x
x = 152,742,049,110.26/520,013.72 - Step 6: Final answer
x = 293,726.96
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1.5x scale
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.