Finding the Fourth Proportional to 511,976.77, 767,392.68 and 191,820.62
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Solution
The fourth proportional to 511,976.77, 767,392.68 and 191,820.62 is: 287,516.45
Step by Step Solution
- Step 1: Write the proportion equation
511,976.77 : 767,392.68 = 191,820.62 : x - Step 2: Convert to fraction form
511,976.77/767,392.68 = 191,820.62/x - Step 3: Cross multiply
511,976.77x = 767,392.68 × 191,820.62 - Step 4: Simplify right side
511,976.77x = 147,201,739,661.06 - Step 5: Solve for x
x = 147,201,739,661.06/511,976.77 - Step 6: Final answer
x = 287,516.45
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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.